Answer: Layered rocks and evolution of life and radiometric time scale based on radioactivity of chemical elements
Explanation:
Two scales are used to date these episodes and to measure the age of the Earth: a relative time scale, based on the sequence of layering of the rocks and the evolution of life, and the radiometric time scale, based on the natural radioactivity of chemical elements in some of the rocks.
What do some scientists today believe causes more adaptations' competition or environmental changes?
Answer:
According to an April study, table corals (Acropora hyacinthus) can adapt to resist bleaching in warmer waters. On Ofu Island in American Samoa, A. hyacinthus lives in both hot and cool pools. In the lab, researchers tested corals from both environments to see how they reacted to increased heat.
Explanation:
i dont really know i tried
Some scientists today believe that adaptations are more caused or provoked by the fact of competition.
What is meant by Adaptation?Adaptation may be defined as the process that significantly involves the modification of internal and external attributes of organisms that makes them fit for survival and reproduction in the natural environment.
Competition is because of the fact that as the diversity of organisms increases, the resource limits remarkably enable the organisms to activate the mechanism of competition. Due to this, each and every species makes itself superior in order to make their survival in the natural environment.
Therefore, some scientists today believe that adaptations are more caused or provoked by the fact of competition.
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DNA libraries are useful for identifying and isolating eukaryotic DNA fragments of interest in research. Select the ways in which genomic and cDNA libraries differ.
a. Genomic libraries are difficult to express in prokaryotic cells, which lack a splicing mechanism.
b. cDNA libraries contain only the sequences from genes that are expressed in an organism.
c. cDNA libraries are the DNA fragment collections that are stored and propagated in host cells through cloning.
d. cDNA libraries contain more sequence information than genomic libraries.
The ways in which genomic and cDNA libraries differ is that the Genomic libraries are difficult to express in prokaryotic cells, which lack a splicing mechanism. Thus, the correct option for this question is A.
What do you mean by Genomic libraries?Genomic libraries may be defined as a group of overlapping segments of genomic DNA that is significantly cloned into a backbone vector, which statistically includes all regions of the genome of an organism efficiently in order to function normally.
On contrary, cDNA libraries may be characterized as the collection of cloned DNA sequences that are complementary to the mRNA and were remarkably extracted from an organism or tissue in order to stimulate its function.
Therefore, genomic libraries are difficult to express in prokaryotic cells, which lack a splicing mechanism is one of the ways in which genomic and cDNA libraries differ.
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which natural resource provide us paper is it renewable
Answer:
Wood fiber. Is a renewable resource, that is used to make paper.
Once they cut the wood from the trees they'll then be wood fibers. They will color the wood as well. White, Pink, Blue, etc. Then once the paper has gone through production in a factory, there is now paper.
Hope this helped.
What is one way to add oxygen to the atmosphere?
Answer:
Plants use sunlight and carbon dioxide to produce oxygen through the process of photosynthesis.
Explanation:
They are the main creators of the oxygen in the atmosphere.
In a given strand of dna the number of thymines
A. Is same as the number of uracils
B. Is double the number of guanines
C. Is double the number cytosines
D. Is the same as the number of adenines
Plz answer ASAP
Answer:
D. same number as adenines
Explanation:
As mentioned, adenines match with thymines and cytosines match with guanines, so there will always be the same quantity of guanine and cytosine and the same quantity of adenine and thymine.
Answer:
D
Explanation:
The number as adenines
I need a media article, about science, that seems like bs. More about sex or anything along those lines? I need to debunk it. But that article has to be based off an actual scientific experiment with a published paper. Does anyone have any articles?
true or false all cells living or dead can produce new living cells
Answer:
TRUE!
Scientist use dead cell embryos to produce living cells
All cells living or dead cannot produce new living cells. Only the living cells can produce new cells. Therefore, the given statement is false.
What is Cell division?Cell division is the process by which a parent cell divides into two new daughter cells. Cell division usually occurs as a part of a larger cell cycle in which the living cell grows and replicates its chromosome before undergoing division.
Cell division occurs in living cells through mitosis and meiosis. The cell division occurs through karyokinesis and cytokinesis. Cell division is a part of the cell cycle. Cell cycle is divided into different phases such as G1 phase, S phase, G2 phase, and M phase.
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Why are stem cells important to multicellular organisms?
Answer:The fabulous ability of an embryo to diversify and of certain adult tissues to regenerate throughout life is a direct result of stem cells, nature's gift to multicellular organisms.
Explanation:
Which of the following lists the levels of body organization from least complex to most complex?
Answer:The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
Which of the following is a property of matter in the liquid
state?
Answer:
the answer is- the element
Explanation:
reason for my answer is because only two element are liquid at standard conditions for temperature and pressure: mercury and bromine.
Which of the following is a function of nucleic acids?
a. Nucleic acids provide energy.
b. Nucleic acids store fatty acids.
c. Nucleic acids store and transmit genetic information.
d. Nucleic acids manufacture simple sugars,
Answer:
I belivie is C) Nucleic acids store and transmit genetic information
good luck ;)
Diagram 1 shows the tilt of Earth's axis. Diagram 2 shows how Earth would look if the tilt of the axis were increased. Each diagram shows the same two locations, Location X and Location Y. Sun Y X- um Earth Diagram 1 Sun •Y X- Swi Earth Diagram 2 Which statement BEST predicts the effect of increasing the tilt of Earth's axis in Diagram 2 on the two locations? Location Y will be cooler in winter and Location X will be cooler in summer. Location Y will be warmer in winter and Location X will be cooler in summer, Location Y will be cooler in winter and Location X will be warmer in summer. Location Y will be warmer in winter and Location X will be warmer in summer. PLEASE HELP MEEEEE
Answer:
confused
Explanation:
name the four stages of the production process ( food and raw materials) PLEASE HELP
Answer:
There is no way around it: food production must become sustainable. Norway is striving to do its share with the help of ground-breaking technology. Sustainable development
Which means of particle transport is shown in Figure 7–4 below?
The figure shows the inside of a cell, the cell membrane, and the outside of the cell. Inside the cell, 15 spheres are labeled “high concentration.” Outside the cell, three spheres are labeled “low concentration.” A sphere enters a figure labeled “transport protein” that spans the cell membrane. An arrow shows that the sphere is moving from outside of the cell into the cell. A lightning bolt-shaped arrow is labeled “energy” and points to the transport protein.• A shaded hemisphere is shown at the top of the illustration titled 'Inside of Cell.' In the hemisphere are sixteen small spheres labeled 'High Concentration.'
• At the bottom of the illustration is the label 'Outside of Cell' on the unshaded part of the image. There are three small spheres labeled 'Low Concentration' in this area.
• A curvy horseshoe looking shape labeled 'Transport Protein' is shown entering the inside of the cell and has an upward arrow labeled on it.
• A small sphere is at the bottom of the curvy horseshoe shape with a jagged arrow next to it labeled 'Energy.'
A. diffusion
B. osmosis
C. facilitated diffusion
D. active transport
Answer:
The answer is D
Explanation:
True or false?
Density is equal to the mass of an object divided by its volume.
Answer:
True
Explanation:
The formula for density is
p = m/v
density = mass ÷ volume
why the numerical values on the X and Y axis has to be consistent?
Answer:
Each axis needs a scale to show the range of the data on that axis. The low end of the scale may be zero or a round number value slightly smaller than the smallest data point. The high end of the scale is usually a round number value slightly larger than the largest data point. The scale is measured off in major and minor tick marks. Typically the scale runs from low to high in easily counted multiples like 10s, 50s, 100s, etc. When graphs are compared side-by-side, consider scaling them to the same data range to make comparisons easier.
Explanation:
thx
Which conditions need to be in balance for cells to function? Check all that apply.
what level of protein structure is found in most enzymes and hemogoblin
Tertiary level of protein structure is found in most enzymes and hemoglobin.
What are the functions of proteins?Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.
Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.
There are seven types of proteins: antibodies, contractile proteins, enzymes, hormonal proteins, structural proteins, storage proteins, and transport proteins.
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Define coefficient to show its scientific meaning
Answer:
In science, a coefficient is a constant term related to the properties of a product. In chemistry, when you see a number in front of a chemical like 2H2o, you're looking at the coefficient.
Identify the structure labeled C
A. Phosphate
B. Nucleotide
C. Base
D. Sugar
what shoukd the patient expect to experience living with the disease- Sitius Inversus?? in ur own words
Answer:
there is a complete mirror image transposition of the thoracic (chest) and abdominal organs , and anterior-posterior (front-back) symmetry is normal. Many affected people have no associated health issues when the condition is isolated.
Explanation:
In your own words what are the definitions of:
Geological Oceanography
Physical Oceanography
Chemical Oceanography
Biological Oceanography
Answer: Oceanography is the study of all aspects of the ocean. Oceanography covers a wide range of topics, from marine life and ecosystems to currents and waves, the movement of sediments, and seafloor geology Geological oceanography is the study of Earth beneath the oceans.
Physical oceanography is the study of physical conditions and physical processes within the ocean, especially the motions and physical properties of ocean waters. Physical oceanography is one of several sub-domains into which oceanography is divided. Others include biological, chemical and geological oceanography.
Chemical oceanography is a broad and complex study of the metamorphosis that the chemicals within oceans, living marine organisms, and the ocean floor undergo. The ocean contains a multitude of chemicals; some are natural, and others are man-made. These chemicals enter the sea in a number of ways.
Biological oceanography is a field of study that seeks to understand what controls the distribution and abundance of different types of marine life, and how living organisms influence and interact with processes in the oceans.
P.s Hope it helped ^^
what effect would constriction of the blood vessels have in the body
Answer:
higher blood pressure
Explanation:
when the vessels constrict they get smaller therefore in order for the blood to be pumped through the body the heart would have to work harder resulting in a higher blood pressure
Answer:
increased blood pressure resulting in risk of heart attack
The zika virus was first identified in Uganda in 1947. The virus is transmitted from person to person by a bite from a mosquito. It is commonly carried by the Aedes mosquito which is prevalent throughout Central Africa. The virus has more recently spread to the Americas (South, Central, and now North) and is expected to spread to Europe. There is a concern that the virus may reach epidemic proportions. Zika virus is related to yellow and dengue fever. Common symptoms are low grade fever and a distinctive skin rash and other symptoms include vomiting, headache, and muscle and/or joint pain. Pregnant women should avoid traveling to areas known to have zika virus present because the virus is known to cause microcephaly and developmental difficulties related to the central nervous system. Based on the paragraph above, class discussions, and other VALID (be careful with your selection of e-materials! CDC – Center for Disease Control is a good place to start) sources of information please answer the following questions. State a reason why the virus has spread to the Americas and likely to spread to Europe. Define the term microcephaly. What bones of the fetal skull would be affected by zika? Specifically, what area of the CNS is not fully developed in microcephalic individuals. In 1 -3 sentences describe the developmental difficulties of microcephalic individuals. How does one know if they have contracted zika? Do men need to be concerned about contracting zika? How does one avoid contracting zika? In a short paragraph (2-5 sentences!) provide one example of a scientific measure that could possibly control the spread of zika and explain how the measure works (controls the spread).
Answer:
1.Most people infected with the Zika virus have no signs and symptoms, while others report mild fever, rash and muscle pain. Other signs and symptoms may include headache, red eyes (conjunctivitis) and a general feeling of discomfort. Zika virus is also called Zika or Zika virus disease. 2.The frontal and parietal bones, but not the occipital bone, collapse over the injured brain. Almost all of the children had prominent calcifications in the brain. Unlike in children infected with cytomegalovirus, periventricular calcifications are the exception in children infected with Zika virus. 3.No they should not be worried.
Explanation:
Plzz help!
Which best describes the relationship between two species and a niche?
If two species have the same niche, one species will always become extinct.
Two species are able to occupy the same niche in the same habitat.
Two species cannot occupy the same niche in the same habitat.
If two species have the same niche, one species will always move.
Answer:
C. Two species cannot occupy the same niche in the same habitat.
Explanation:
just took the quiz
Answer:
C
Explanation:
I did it on edge 2020
Define essential nutrient.
Answer:
Here:
Explanation:
They are nutrients that are not produced inside your body but your body needs it to survive. One example is Omega-3 fatty acid which is an essential fatty acid.
Answer:
Substance that must be obtained from the diet because the body cannot make it in sufficient quantity to meet its needs.
Explanation:
Hope this answers your question :)
When a patient comes to a hospital with severe dehydration, doctors will give
them an IV filled with a salt-water solution called saline, which is isotonic with
the body's blood cells.
Why is the patient not given pure water?
Answer:
The red blood cells could burst.
Explanation:
If they are given pure water, the IV fluid will be hypotonic to the blood cells. That means water will end the red blood cells by osmosis, from a high concentration outside to a lower concentration inside.
This will result in the red blood cells becoming swollen and even potential bursting.
How does the storage of energy in ATP molecules benefit a cell?
Answer:
ATP. Specifically, during cellular respiration, the energy stored in glucose is transferred to ATP (Figure below). ATP, or adenosine triphosphate, is chemical energy the cell can use. It is the molecule that provides energy for your cells to perform work, such as moving your muscles as you walk down the street.
Explanation:
How could research on mice or rats help answer our medical research questions — questions that are, after all, about humans?
Answer:
you could disect them or observe what they do by doing things like putting them in a maze or seeing what they do in front of a mirror.
Explanation:
process associated with moving carbons from glucose to mitochondion
Answer:
Glucose passes through a series of catabolic reactions in the process of cellular respiration. First, glucose is split in the cytoplasm in the process of glycolysis. The resulting end-productsmove into the mitochondria and go through a preparatory step to the Krebs cycle, and finally to the electron transport system.