When blood glucose drops, glucagon is released to stimulate the Release of glucose stored as liver glycogen.
Glucagon's role in the body is to prevent blood glucose levels dropping too low. To do this, it acts on the liver in several ways: It stimulates the conversion of stored glycogen (stored in the liver) to glucose, which can be released into the bloodstream. This process is called glycogenolysis.
Glucagon is a hormone that triggers liver glycogen to convert back into Glucose and to enter your bloodstream so that your body can use it for Energy.
To learn more about Blood glucose
https://brainly.com/question/8394646
#SPJ4
Click on the image that shows the structures of the brain and explore the functions, then answer the questions.
The brain is a sophisticated organ that manages every bodily function as well as thought, history, emotion, taste, motor skills, vision, respiration, temperature, and hunger.
What are the medulla oblongata's five functions?The autonomic nervous system's fundamental processes, such as respiration, heart activity, vasodilation, and responses like vomiting, laughing, sneezing, and swallowing, are all regulated by the medulla oblongata.
What's the structure and purpose of the medulla oblongata?Your brain's lowest region is called the medulla oblongata. Because of its location, where your spine and brain converge, it serves as a vital pathway for nerve messages traveling from and within your body. Moreover, it aids in the regulation of critical functions like blood pressure, respiration, and heartbeat.
To know more about respiration visit :
brainly.com/question/18024346
#SPJ1
Question: Review the information from the link, Inside Ted's Head, then answer the questions provided. Click on the image that shows the structures of the brain and explore the functions, then answer the questions. What is the function of the medulla oblongata?
Which small proteins serve as a means of communication between immune system cells?
Little proteins called cytokines act for the purpose of correspondence between immune system cells.
The Cytokines can likewise be called little proteins. They follow up on the insusceptible framework as a reaction to antigenic improvement and capability as a substance courier between cells of the invulnerable framework, permitting different cells to perceive what's going on and to accurately act.
The different cells of the versatile insusceptible framework convey either straightforwardly or by means of dissolvable synthetic couriers like cytokines (little proteins). These substance couriers are for the most part proteins and are delivered by various cells in the body.
Learn more about the immune system here:
brainly.com/question/19843453
#SPJ4
the primary source of rbcs in the adult human being is the bone marrow in the shafts of the long bones. T/F
It is false that the bone marrow in the shaft is not the primary source of RBCs in humans. Because red bone marrow in the spongy bone or epiphysis of the bone is the source of RBCs.
The two main parts of the long bone are diaphysis and epiphysis. The diaphysis is the important part that has a tubular shaft running from the proximal to the distal bone ends. This part has a hollow region which is called a medullary cavity. This hollow part is filled with yellow marrow and the walls are made of hard and dense compact bone.
The epiphysis is considered the wider end section of the bone. This is mostly filled with a spongy bone containing red marrows. This red marrow is where the red blood cells, platelets, and white blood cells are produced. The given statement is false about RBCs source.
To know more about red marrow:
https://brainly.com/question/819753
#SPJ4
describe an example to illustrate how genotype and environment contribute to phenotype
The combined influences of genotype and environment have a substantial impact on phenotype. One example is the changing of morphology in some plants as a result of environmental changes.
What effects do genetics and environment have on phenotype?Although spontaneous mutations can cause it to change, the genotype normally remains constant from one environment to the next. When the same genotype is exposed to different settings, however, it can produce a wide range of phenotypes.
What is an example of a phenotypic effect of the environment?Environmental factors such as temperature and nutrition availability influence phenotypes. Temperature, for example, influences coat color in Siamese cats.
Learn more about phenotype
https://brainly.com/question/20730322
#SPJ4
which process creates unique combinations of genes?
A process that creates unique combinations of genes is called genetic recombination or genetic reshuffling.
This process occurs when two different sets of chromosomes containing different genes interact and exchange genetic material. The exchange of genetic material can lead to the creation of a new set of chromosomes with a mixture of genes from both sets of chromosomes. This process of genetic reshuffling can result in the formation of unique combinations of genes that are not present in either of the original sets of chromosomes. Genetic recombination is an important process in evolution and allows organisms to adapt to changing environments.
learn more about Genetic recombination Refer:brainly.com/question/12685192
#SPJ4
I need help on this
Explain each Steps of cellular respiration and what does it use and what does it make
Glycolisis uses Glucose and produces Pyruvate. The krebs cycle uses Acetyl CoA and produces Oxalacetate, NADH, FADH₂. The electron transporter chain uses Oxygen, NADH, FADH₂ and produces ATP and water. ATP synthase uses the proton gradient and produces ATP.
What are the steps of aerobic cellular respiration?
Through respiration, cells can degrade organic compounds and produce energy.
Aerobic respiration takes place in three steps or stages: Glycolysis, Krebs cycle and electron transporter chain.
Glycolysis is the first step of cellular respiration. Glycolysis is the process through which the cell partially decomposes glucose and turns it into pyruvate. It occurs in the cytoplasm.Pyruvate, the main product of glycolisis, enters the mitochondria matrix and turns into Acetyl CoA. Once in the matrix, it enters the Krebs cycle
The Krebs cycle, takes place in the mitochondria matrix. This cycle uses acetyl-CoA and turns it into Oxalacetate, NADH, and FADH₂.NADH and FADH₂ move to the mitochondrial membrane where it is used in the electron chain.
The electron transporter chain is placed in the internal mitochondrial membrane and uses protons from NADH and FADH₂ to produce ATP and water molecules.The proton gradient created along the elctron transporter chain is used to produce ATP molecules by ATP synthase.
Process What does it use? What does it make?
Glycolisis ⇒ Glucose ⇒ Pyruvate
Krebs Cycle ⇒ Acetyl CoA ⇒ Oxalacetate, NADH, FADH₂
Electron chain ⇒ NADH, FADH₂, O₂ ⇒ ATP + H₂O
ATP synthase ⇒ Proton gradient ⇒ ATP
You can learn more about cellular respiration at
https://brainly.com/question/29760658
#SPJ1
which is accurate regarding the inability to digest dairy products?
The inability to digest dairy products is caused by lactose intolerance is accurate regarding the inability to digest dairy products. Here option C is the correct answer.
Lactose intolerance is the inability to fully digest lactose, a sugar found in milk and other dairy products, due to a deficiency in the enzyme lactase. This deficiency can be genetic or acquired and can cause symptoms such as bloating, gas, diarrhea, and stomach cramps. It is a common condition, affecting about 65% of the world's population.
Option A is incorrect because an allergy to lactose is rare and can cause symptoms such as hives, wheezing, and anaphylaxis, which are different from lactose intolerance symptoms. Option B is incorrect because an allergy to casein is also rare and causes symptoms such as hives, eczema, and gastrointestinal distress.
Option D is incorrect because lactose intolerance is a real and common condition, and people who are lactose intolerant should avoid or limit dairy products or take lactase supplements to aid digestion.
Complete question:
Which is accurate regarding the inability to digest dairy products?
A: Inability to digest dairy products is caused by an allergy to lactose.
B: Inability to digest dairy products is caused by an allergy to casein.
C: Inability to digest dairy products is caused by lactose intolerance.
D: Inability to digest dairy products is a myth.
To learn more about dairy products
https://brainly.com/question/29260450
#SPJ4
what is the offspring of a genetic cross between two purebred organisms with different genotypes called?
Hybrids are offspring of a genetic cross between two purebred organisms with different genotypes.
A hybrid is a creature created through sexual reproduction that combines traits from two distinct breeds, variations, species, or groups. An individual where some cells are produced from a distinct creature is referred to as a chimaera.
In general, it implies that each cell has genetic material from two different organisms. Hybrids can exhibit hybrid vitality, occasionally getting bigger or higher than either parent, and they do not always intermediate between their parents (as in the case of blending inheritance).
In animal and plant reproduction, where there is interest in the particular lineage, the idea of a hybrid is understood differently. In genetics, the quantity of chromosomes is the main topic of discussion. How closely linked the progenitor species are to one another is a crucial issue in taxonomy.
Learn more about Hybrids:
https://brainly.com/question/24337967
#SPJ4
What are the types of fossil preservation?
Three basic techniques are used to conserve fossils: unaltered soft or hard portions; changed hard parts; and trace fossils.
Five processes can result in the formation of fossils: compression, replacement, molds and castings, permineralization, and preservation of original remains. There are three basic techniques to preserve fossil plants: petrifications, phytoleimmas, and imprints (for more details see J. M. Schopf, 1975). In the first instance, plant remains decompose entirely and leave an imprint on the rock.
Fermentation, chilling, and drying are a few of the oldest preservation techniques. Contemporary techniques include chemical addition, irradiation, pasteurization, freezing, and canning. The preservation of modern food has benefited greatly from advancements in packing materials.
Learn more about fossil Visit: brainly.com/question/18402641
#SPJ4
which branchial arch forms the ultimobranchial body is called
The inferior parathyroid glands and thymus are formed by the third pharyngeal pouch, while the superior parathyroid glands and ultimobranchial body are formed by the fourth pharyngeal pouch.
The ultimopharyngeal body, also known as the ultimobranchial body or ultimobranchial gland, is a tiny structure present in many animals' necks. It grows from the fourth pharyngeal pouch into the thyroid's parafollicular cells to create calcitonin in humans. It might not appear in DiGeorge syndrome.
Ultimobranchial bodies develop from the last visceral pouches in the same way that thymus and parathyroid tissues develop from the more anterior visceral pouches . This epithelial tissue is colonized by cells from the neural crests, giving rise to groups of calcitonin-secreting cells.
Learn more about pharyngeal pouch'
https://brainly.com/question/14674199
#SPJ4
Cells in a lymph node that engulf and destroy damaged cells, foreign substances, and cellular debris areA. Macrophages
B. Rapidly
C. Lymphocytes D. Macrophages
Macrophages are lymph node-based cells that consume injured cells, foreign objects, and cellular detritus.
As lymph fluid passes through the lymph nodes, it is filtered. Bacteria, viruses, or other foreign things are captured in the nodes and then eliminated by specialised white blood cells. Lymphocytes are the name for these cells. The very first cell to detect and ingest foreign chemicals is a macrophage (antigens). These molecules are broken down by macrophages, which then provide the T lymphocytes the smaller proteins. (T cells have the ability to identify, react to, and retain antigens.) In the body's immune system, phagocytes like neutrophils and macrophages are the first line of defence. They use a procedure known as phagocytosis to locate, swallow, and eliminate pathogens and other detritus.
Learn more about cells
https://brainly.com/question/30046049
#SPJ4
Is a mutation a permanent change in DNA?
Answer:
Yes a mutation is permanent change
what type of fat is associated with elevated levels of cholesterol in the blood?
Eating foods containing saturated and trans fats is associated with elevated levels of cholesterol in the blood.
Saturated fats and trans fats have a greater effect on increasing LDL (“bad”) cholesterol levels than other types of fats, such as monounsaturated and polyunsaturated fats. Eating too much saturated and trans fat can raise your cholesterol levels, increasing your risk of heart disease and stroke.
Lipoproteins are particles made of lipids (fats) and proteins that transport cholesterol and triglycerides around the body. LDL cholesterol carries cholesterol from the liver to the cells, where it is used for energy. High levels of LDL cholesterol can lead to fatty deposits in the arteries (atherosclerosis), which can increase the risk of stroke, heart attack, and other cardiovascular diseases. Eating foods containing saturated and trans fats is associated with elevated levels of LDL cholesterol in the blood.
To know more about Lipoproteins please refer:
https://brainly.com/question/4475544
#SPJ4
the diastolic blood pressure is heard during which korotkoff phase?
Korotkoff Phase 4: A faint, muted sound of blowing that gradually vanishes. Once the cuff pressure is relaxed, the sounds become softer and muffled.
Medical professionals listen for Korotkoff noises when they take a patient's blood pressure non-invasively. They were first identified in 1905 by a Russian doctor called Nikolai Korotkov when he was working at the Imperial Medical College in St. Petersburg, the Russian Empire.
The heart sounds detected during chest auscultation—which are caused by vibrations inside the ventricles associated with the valves slamming shut—are different from those detected during blood pressure monitoring.
In a healthy individual (without vascular illness), there should be no sound when a stethoscope is put over the brachial artery in the antecubital fossa.
Learn more about Korotkoff Phase
https://brainly.com/question/28385505
#SPJ4
In the 1940s, proteins were thought to be the more likely molecules to house genetic material. What was the primary reason that DNA was not originally believed to be the genetic material?(a) DNA has a high density of negative charges.(b) Nucleotides were known to be a source of chemical energy for the cell.(c) Both protein and nucleic acids were found to be components of chromosomes.(d) DNA was found to contain only four different chemical building blocks.
Answer:
DNA was found to contain only four different chemical building blocks
Which is an accurate description of how DNA is replicated?
A. The nucleotides of both strands of DNA are taken apart and used to assemble two completely new DNA molecules.
B. The two strands are "unzipped" and each is used to make a new DNA strand before being put back together.
C. The nucleotides of one strand of DNA are taken apart to form a new DNA molecule, then it’s replaced by free nucleotides.
D. The two strands of DNA are "unzipped" and each serves as a template for a complementary DNA strand.
D.) The two strands of DNA are “unzipped” and each serves as a template for a complementary DNA strand.
Opening the double helix and separating the DNA strands, priming the template strand, and putting together the new DNA segment are the three main phases in the replication process. The DNA double helix uncoils its two strands at a site known as the origin during separation.
Two complimentary strands form the double helix that is DNA. Since two linear strands of double-stranded DNA are made up of two oppositely oriented strands that twist together to create a double helix, this structure is described. These strands split off throughout replication. The process is known as semiconservative replication, in which each strand of the original DNA molecule acts as a template for the creation of its counterpart.
Learn more about DNA here:
https://brainly.com/question/30006059
#SPJ4
what are cats with short legs
Munchkin cats (also called “sausage cats”) are regular domestic cats that stand out because of their shortened legs, giving them a much smaller stature than other breeds.
Munchkins are swift, smart, and enjoy playing hide-and-seek with shiny objects while having a very beautiful and adorable appearance. As they are unaware of their distinctive characteristics, Munchkin cats act exactly like any other cat breed. Their leg length is irrelevant to them; they do the best they can given their limitations in terms of size.
Finding a Munchkin is a precious find for cat lovers, and you can fall in love with them for their unusual appearance.
To know more about domestic cats click here:
https://brainly.com/question/23979170
#SPJ4
Which feature of viruses is the most similar to a feature of living things?
Viruses do not grow or develop.
Viruses have a way to reproduce new viruses.
Viruses have a basic structure that is not based on cells.
Viruses require host cells in order to be active.
The ability of viruses to reproduce new viruses is the characteristic of viruses that, of the options mentioned, most closely resembles a characteristic of living beings.
As they cannot perform metabolic functions or autonomously replicate, viruses are not thought of as being alive. Yet, they do have a mechanism for producing new viral particles.
The cellular machinery is hijacked by a virus when it enters a host cell to create copies of its own genetic material and proteins. The new viral particles created from these parts are subsequently liberated from the host cell and can spread to other cells to infect them. This procedure is comparable to the replication and reproduce new viruses that take place in live things and entail the development of new individuals.
The remaining alternatives on the list, in contrast, explain characteristics of viruses that are different from those seen in living beings. For instance, viruses do not themselves grow or develop because they lack the internal structures required for these processes, even though they may need host cells to be active. Similar to how viruses lack the intricate cellular structures found in live beings, viruses have a basic structure that is not based on cells and is made up of a limited quantity of genetic information surrounded by a protein shell.
Learn more about reproduce new viruses here
https://brainly.com/question/30802329
#SPJ4
Which process would be directly affected by a substance that interferes with spliceosomes? mRNA processing translation replication
Spliceosomes are enzymes that splice out introns and splice exons together and in alternative Splicing, which is among the steps of Rna synthesis (technique of post transcription regulation of gene expression).
If they are disrupted, mRNA processing cannot occur correctly or at all. The removal of non-coding introns of precursor messenger RNA is a process known as RNA splicing, which is carried out by the ribonucleoprotein complex known as the spliceosome [138]. Generally speaking, alternative splicing is how the majority of genes produce several spliced transcripts. Ordered interactions between snRNPs and pre-mRNA take place during spliceosome assembly. U1 and U4 are first released from the spliceosome, and then the NTC is bound. The spliceosome is initially deconstructed by releasing the matured mRNA following the two catalytic processes, as well as the spliceosome is subsequently broken down.
Learn more about spliceosome
https://brainly.com/question/13975232
#SPJ4
Which of these conditions do not occur in populations evolving due to natural selection? Individuals pass on most traits that they acquire during their lifetime More offspring are produced than can survive. The populations vary in traits that can be inherited. Some inherited traits increase reproductive success
the circumstances are that people pass on the majority of the features they acquire over their lifespan. The communities vary in the qualities that can be acquired and more kids are generated than can survive.
What factors must be absent for biological evolution to take place in a population?Natural selection does not depend on a species' ability to survive in the face of unforeseeable future events because it affects communities in reaction to the current environment.
Describe the five conditions that natural selection must meet?Darwinism is a straightforward method that results in long-term population changes in living things. In fact, it is so straightforward that it can be divided into five fundamental processes, which we'll refer to as VISTA in this instance: Variation, Inheritance, Selection, Time, and Adaptation.
To know more about Natural selection visit :
https://brainly.com/question/2725702
#SPJ1
Formation of the Solar System Lab Report
Instructions: In this virtual lab, you will investigate the law of universal gravitation by manipulating the size of the star and the positions of planets within Solar System X. Record your hypothesis and results in the lab report below. You will submit your completed report.
Name and Title:
Include your name, instructor's name, date, and name of lab.
Objectives(s):
In your own words, what is the purpose of this lab?
Hypothesis:
In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
If the mass of the sun is 1x, at least one planet will fall into the habitable zone if I place a planet in orbits___, ____, ____, and ____, and all planets will orbit the sun successfully.
If the mass of the sun is 2x, at least one planet will fall into the habitable zone if I place a planet in orbits___, ____, ____, and ____, and all planets will orbit the sun successfully.
If the mass of the sun is 3x, at least one planet will fall into the habitable zone if I place a planet in orbits___, ____, ____, and ____, and all planets will orbit the sun successfully.
Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome.
Using the summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.
Data:
Record your observation statements from Space Academy.
When the mass of the sun is larger, Earth moves around the sun at a ______ (faster, slower) pace.
When the mass of the sun is smaller, Earth moves around the sun at a ______ (faster, slower) pace.
When Earth is closer to the sun, its orbit becomes _____ (faster, slower).
When Earth is farther from the sun, its orbit becomes _____ (faster, slower).
For each trial, record the orbit number of each planet from the sun. Be sure to indicate the number of planets in the habitable zone after each trial. Create a different configuration of planets for each trial. An example has been supplied for you.
Orbit Number
Planet One Orbit Number
Planet Two Orbit Number
Planet Three Orbit Number
Planet Four Number of planets in the habitable zone Number of planets left in successful orbit
Example: sun's mass 1x
1
3
5
6
1
2
sun's mass 1x—Trial One
sun's mass 1x—Trial Two
sun's mass 2x—Trial One
sun's mass 2x—Trial Two
sun's mass 3x—Trial One
sun's mass 3x—Trial Two
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.
Using two to three sentences, summarize what you investigated and observed in this lab.
You completed three terra forming trials. Describe the how the sun's mass affects planets in a solar system. Use data you recorded to support your conclusions.
In this simulation, the masses of the planets were all the same. Do you think if the masses of the planets were different, it would affect the results? Why or why not?
How does this simulation demonstrate the law of universal gravitation?
It is the year 2085, and the world population has grown at an alarming rate. As a space explorer, you have been sent on a terraforming mission into space. Your mission to search for a habitable planet for humans to colonize in addition to planet Earth. You found a planet you believe would be habitable, and now need to report back your findings. Describe the new planet, and why it would be perfect for maintaining human life.
Answer:
The goal of this lab was to investigate the law of universal gravitation by changing the size of the star and the position of the planets within a solar system. Through the three trials, it was observed that the sun's mass affects the planets in the solar system, with larger sun masses resulting in slower orbiting planets and fewer planets in the habitable zone. If the masses of the planets were different, it would likely have an effect on the results as the gravitational pulls from one another would be varied, potentially affecting the orbits of the planets. This simulation demonstrates the law of universal gravitation in that larger sun masses cause a stronger gravitational pull, thus causing the planets to move at a slower pace.
which question lies outside of the basic issues in lifespan human development?
Note that the question that lies outside the basic issues of lifespan human development is: "Which is more influential, early childhood or adulthood?"
What are the issues of lifespan human development?Lifespan human development refers to the physical, cognitive, and socioemotional changes that occur throughout a person's life.
There are several issues related to lifespan human development, including nature vs. nurture, stability vs. change, and continuity vs. discontinuity. Nature vs. nurture refers to the debate about the relative contributions of genetic and environmental factors to human development.
Stability vs. change refers to whether or not personality traits, behaviors, and abilities remain stable over time or change throughout the lifespan. Continuity vs. discontinuity refers to whether development is a gradual, continuous process or a series of distinct stages.
Learn more about lifespan human development:
https://brainly.com/question/9010692
#SPJ1
What was NOT a key characteristic of the common ancestor of all life?A. It had DNA as its genetic codeB. It used ATP as a form of energyC. It contained its DNA in a protected nucleusD. Through transcription, its DNA made RNA which then made proteins
The feature that is NOT a key characteristic of the common ancestor of all life is C. It contained its DNA in a protected nucleus.
Ancestral organism shared through or extra descendent lineages — in different words, an ancestor that they have got in not common. For example, the not unusual place ancestors of organic siblings consist of their dad and mom and grandparents; the not common ancestors of a coyote and a wolf consist of the primary dog and the primary mammal. Homologous systems offer proof for not common ancestry, whilst analogous systems display that comparable selective pressures can produce comparable adaptations (useful features). Similarities and variations amongst organic molecules (e.g., withinside the DNA collection of genes) may be used to decide species' relatedness.
To learn more about genetic code check the link below-
https://brainly.com/question/22632342
#SPJ4
Fossil records are used to support evolution, but they're not complete. In fact, large gaps exist. In many cases the evolution of a species cannot be completely traced. How is the fossil record used to support evolution if there are so many missing pieces?
Responses
A.Scientists use the tissue of fossilized organisms to conduct DNA testing to determine evolutionary relationships
B.Scientists only focus on those fossilized species which have a complete record.
C.Scientists can build models of more complex organisms from the vast collection of fossilized remains of simple organisms.
D.Scientists can make inferences regarding the gap in the fossil record by combining their documented research, measurements and observations.
Scientists can make inferences regarding the gap in the fossil record by combining their documented research, measurements, and observations. The fossil record provides a valuable resource for studying the history of life on Earth.
By examining the fossils that have been found, scientists can make inferences about the evolution of species and the relationships between different groups of organisms. They can use the information gathered from fossils to construct evolutionary trees and to develop hypotheses about how different groups of organisms are related. Additionally, advances in technology have allowed scientists to study fossils in new ways, such as conducting DNA testing, which can provide additional evidence for evolutionary relationships.
Learn more about Fossil :
https://brainly.com/question/28122522
#SPJ4
Which sample of DNA might be from a cell that stopped the process of cell division in G0 phase of the cell cycle prior to meiosis?
A) I B) II C) III D) Either I or II
The sample of DNA that might be from a cell that stopped the process of cell division in G0 phase of the cell cycle prior to meiosis is option III.
This is because the DNA in option III appears to have undergone significant condensation and coiling, indicating that it is in a highly condensed state characteristic of cells that are not actively dividing. In contrast, which is characteristic of cells that are actively undergoing DNA replication or cell division.G0 phase is a resting phase in which cells have exited the cell cycle and are no longer actively dividing. Cells in G0 phase are often differentiated or specialized cells that have ceased to divide, such as nerve or muscle cells. Since meiosis involves cell division, cells that have entered G0 phase are unlikely to undergo meiosis. Therefore, the sample of DNA in option III, which appears to be in a condensed state, is more likely to be from a cell in G0 phase.
Learn more about DNA here:
https://brainly.com/question/264225
#SPJ4
The walls of capillaries contain only the ______ intima allowing for rapid gas and nutrient exchange between the blood and tissues.
A. Tunica
B. Endothelium
C. Tunica Media
D. Elastic fibers
which process results in daughter cells with half the original cell’s genetic material? A. Meiosis B Mitosis
option a) Meiosis is used to make special cells - sperm cells and egg cells - that have half the normal number of chromosomes.
Meiosis from the Ancient Greek (mesis) 'lessening,' as it is a reductional division) is a form of cell division of germ cells that produces gametes such as sperm or egg cells in sexually reproducing organisms.
It consists of two rounds of division that result in four cells with just one copy of each chromosome (haploid). Before to division, genetic material from the paternal and maternal copies of each chromosome is crossed over, resulting in novel code combinations on each chromosome.
Learn more about Meiosis
https://brainly.com/question/29383386
#SPJ4
Recent biochemical evidence divides all organisms into three domains: Bacteria, Archaea, and Eukarya. Previously, Bacteria and Archaea were viewed as one group. Which statement best describes why Bacteria and Archaea have been placed into separate domains?
Archaea were found to contain organelles, separating them from Bacteria.
They have differences in the biochemical makeup of their cell walls.
Archaea do not resemble Bacteria when viewed under a microscope.
Bacteria live in extreme environments and Archaea do not.
Answer: Archaea and Bacteria domains are prokaryotes because their cells do not contain membrane-bound organelles or cell nuclei. However, there are certain phenotypic, structural, and evolutionary features to distinguish Archaea and Bacteria domains.
Explanation:
what structural type of joint is illustrated here joining the shaft of the radius to the ulna? a) suture. b) synchondrosis. c) syndesmosis. d) amphiarthrosis.
The structural type of joint illustrated here joining the shaft of the radius to the ulna is a syndesmosis joint.
A syndesmosis joint is a particular kind of fibrous joint that enables dense fibrous connective tissue to link bones, creating an interosseous membrane. Because the bones are bound together by strong, fibrous ligaments that restrict their range of motion, this type of joint offers more stability and less mobility than a synovial joint. If stability overrides movement, such as in the ankle joint and between the radius and ulna bones in the forearm, syndesmosis joints can be discovered.
The syndesmosis joint enables the radius and ulna to be firmly linked while still allowing for a small amount of rotational flexibility. For stable and appropriate arm and wrist movement, this is crucial.
Learn more about joint
brainly.com/question/22099560
#SPJ4
Which of these are fossilized microbial mats containing photosynthetic bacteria?
a) Biofilms
b) Stromatolites
c) Stalagmites
d) Cyanobacteria
e) Resin
B. Stromatolites, or fossilised microbial mats, are composed of layered organo-sedimentary structures created by prokaryotes precipitating minerals. They serve as the earliest fossil record of life on Earth.
Stromatolites are layered sedimentary formations (microbialites) that are primarily produced by photosynthetic microorganisms like cyanobacteria and sulfate-reducing bacteria.
These microbes create adhesive substances that bind sand and other rocky components to form mineral "microbial mats." These mats in turn accumulate layer by layer, accumulating over time. A stromatolite can reach a height of one metre or more. Fossilized stromatolites preserve evidence of prehistoric life on Earth, despite their rarity today. The existence of organic globule clusters of aragonite nanocrystals within the thin layers of stromatolites has led scientists to hypothesise that the structure has a biological origin.
Learn more about cyanobacteria here:
https://brainly.com/question/2516577
#SPJ4