Two things that can happen when neurotransmitter binds to the receptors on the postsynaptic neuron are :-
1) fire an action potential
2) ion concentration changes across the membrane by opening or closing of channels causing depolarisation.
A postsynaptic neuron "decides" whether to fire an action potential by adding together, or integrating, all of the excitatory and inhibitory inputs it receives. The integration of postsynaptic potentials that occur in separate locations—but at about the same time—is known as spatial summation.
The presynaptic portion of many synapses is positioned on an axon, whereas the postsynaptic portion is located on a dendrite or soma.
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The postsynaptic cell becomes either more or less likely to fire an action potential.
If the postsynaptic cell is excited enough, it will continue passing the message to other cells. (sample response edge2020)
what is the approximate ratio of red eyed flies to brown eyed flies in the f2 generation
The approximate ratio of red eyed flies to brown eyed flies in the f2 generation is 1:1. This means that for every red eyed fly, there is approximately one brown eyed fly.
This ratio is referred to as segregation, which occurs when the alleles for a trait separate during meiosis. In the f2 generation, the alleles for eye color (red or brown) are randomly shuffled and recombined, resulting in a 1:1 ratio between red eyed and brown eyed flies. This is because in the f1 generation, the parents had a red eye trait and a brown eye trait that were both dominant. Since the red eye trait is dominant, it was passed on to the f2 generation, while the brown eye trait was recessive and not passed on. Therefore, the f2 generation would have 3 red eyed flies for every brown eyed fly.
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what nerves are in the face
The facial nerve basically consist of five major branches which are the frontal, buccal, marginal mandibular, zygomatic, and cervical.
The facial nerves basically form a pathway right from our brain to some particular muscles which are present in our face. The facial nerves basically control certain muscles help us in making certain expressions which include raising an eyebrow, frowning or smiling. This nerve is also basically responsible for most of the taste sensations of our tongue.
The facial nerve happens to have five main branches, the anatomy of which can possibly vary somewhat between different individuals. These branches include the, zygomatic, buccal, frontal, marginal mandibular, and cervical.
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Brent is running on a hot day. His body operates best when its inner temperature is 98.6°F.
Brent is running on a hot day. His body operates best when its inner temperature is 98.6F. If Brent's body temperature climbs above 98.6F, negative feedback provided by sweat will keep it from climbing too high.
What is temperature?
Thermometers are calibrated using different temperature scales that traditionally relied on different reference points and thermometric materials for definition. The most popular scales are the Kelvin scale (K), which is mostly used for scientific reasons, the Fahrenheit scale (°F), and the Celsius scale, with the unit symbol °C (formerly known as centigrade). One of the International System of Units' seven base units is the kelvin (SI).The lowest temperature on the thermodynamic scale is absolute zero, or 0 kelvin, or 273.15 degrees Celsius. The thirdthird law of thermodynamics acknowledges that it can be experimentally approached extremely closely but never actually reached. At that temperature, it would be difficult to extract energy from a body in the form of heat.To know more about temperature, click the link given below:
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The figure shows four stages of a telomere shortening. What is the correct sequence of stages from youngest to oldest?A. 1, 3, 2, 4B. 3, 2, 1, 4C. 3, 4, 1, 2D. 2, 1, 4, 3
The four stages of telomere shortening are depicted in the figure. The right order of stages, from youngest to oldest, is 1, 3, 2, 4.
During age, telomere length decreases. The health or lifespan of an individual are impacted by the progressive shortening of telomeres, which causes senescence, apoptosis, and oncogenic conversion of somatic cells. According to one theory, telomeres eventually disappear as a split happens because they get shorter & shorter each time. The cell now just ages and is unable to duplicate since the so-called "true" DNA can no longer be copied.It has been demonstrated that telomere shortening occurs in conjunction with physical disease states brought on by ageing and stress exposure, such as diabetes mellitus, obesity, cardiovascular disease, persistent obstructive respiratory disease (COPD), breathing problems, and psychiatric conditions like depression, anxiety, and posttraumatic stress disorder.
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Which action is considered an act of commission? A. Educational neglect B. Physical neglect C. Emotional abuse D. Inadequate supervision
Answer: D
Explanation:
Took the test!
A cell is in ______ when the cell is growing, replicating its DNA and doing their cell functions.
Answer:Cell cycle
Explanation: The stages of the cell cycle is interphase, mitosis and cytokinesis. It keeps repeating to produce more cells.
the product of gene transcription is
The information contained in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus during the transcription process. Protein is the end result of synthesis.
The process by which the genetic information contained in an mRNA is decoded into a particular sequence of amino acids to create polypeptides or proteins is known as translation. The first result of transcription in eukaryotes (organisms with nuclei) is known as pre-mRNA.
Before the mature mRNA is produced and ready for translation by the ribosome, the cellular organelle that acts as the site of protein synthesis, pre-mRNA is extensively edited through splicing.
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Drag each cell structure to the appropriate bin. If a structure is found in both plant cells and animal cells, drag it to the "both" bin. chloroplast cellulose cell wall plant cell only mitochondrion endoplasmic reticulum central vacuole nucleus plasma membrane animal cell only Golgi apparatus both centriole cytoskeleton
cellulose cell wall, core vacuole, and chloroplast are uniquely found in plant cells.
only a mammalian cell, the centriole. Both - mitochondria, cytoskeleton, Golgi, endoplasmic reticulum, nucleus, and plasma membrane. Animal and plant cells share more similarities than differences. Nonetheless, the distinctive architecture of plant cells play significant roles. In the chloroplasts of plant cells, photosynthesis takes place. The central vacuole of the plant cell occupies the majority of the cell's volume and performs a number of tasks, such as storing and hydrolyzing organic molecules. Plant cells are shielded from harm and keep their shape thanks to their cellulose-based cell walls. The most prevalent organic substance in nature is cellulose.
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what are the passageways that carry proteins and other materials?
the body element is where the information about the document is provided to the browsers.
True or False
True. The body for every element is where the browsers will find the document's information. Pictures are also referred to as inline images since they are positioned in line with the surrounding material, just like text-level components.
The HTML "body" element identifies the primary material of an HTML file or the area of the file that will be directly viewable on your website. The "body" element" is another name for this tag.
A Web page, which is the name for every piece of content on the Internet, is kept on a file server. Hypertext Markup Language is the language used to create web pages (HTML). <main> The body of a document's main HTML element denotes its major content.
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Which adaptation is least likely to be found in any dinosaurs? a. bright coloration
b. bipedal posture
c. feathered wings
d. gills for breathing underwater e. posture with heads upright and tails off the ground
The adaptation which is least likely to be found in any dinosaurs is the presence of gills for breathing underwater .
Some experts have gone against the conventional scientific opinion throughout the years, proposing that dinosaurs were cold-blooded (ectotherms), incapable of maintaining birdlike metabolic rates or activity levels. Several of these hypotheses were founded on the concept that dinosaurs possessed crocodilian-like lungs and ventilated them in a crocodilian manner.
The claim that theropods breathed in this manner is based mostly on the interpretation of a few beautifully preserved fossils. Similar to crocodilians, Sinosaruopteryx and Scipionyx reveal probable remnants of the liver, which seems to divide the body cavity vertically into a thorax (containing the heart and lungs) and belly (containing the other internal organs). Scipionyx also retained features that were previously thought to be diaphragmatic musculature strands.
Some scholars recognized the obvious shape of the liver in Sinosauropteryx as the result of damage and later repairs to a specimen, while others saw it as the result of damage and subsequent repairs to a specimen.
The' muscle traces' of Scipionyx have also been reinterpreted as characteristics of the rock in which the fossil was discovered, rather than elements of the animal's biology, and so did not reflect the remains of a croc-like diaphragm.
Dinosaurs also lack additional crocodilian characteristics linked with hepatic-piston breathing, such as a rib-free lower spine. As a result, most academics have dismissed the concept that dinosaurs ventilated their lungs using a croc-like diaphragmaticus configuration. Dinosaurs, like birds, probably definitely ventilated their lungs by moving their ribs and sternum.
The correct answer is option D, gills for breathing underwater .
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Except for __________, the following statements about blood are true.a.The viscosity is three to five times greater than water.b The pH is slightly acidic.c. It contains about 55% plasma.D. It contains dissolved gases.
Except for the acidic nature of blood, the given statements about blood are true. This is because blood is basic or alkaline. So option b is correct.
The blood is considered the suspension solution of three main components white blood cells, platelets, and red blood cells. Since they have different components like proteins, electrolytes, and some macromolecules in addition to water. So they are considered highly viscous than water.
Their normal pH usually ranges between 7.35 to 7.45. So this pH is greater than 7 and considered slightly basic or alkaline. About 55% of blood is considered plasma and the rest 45% is occupied by platelets, RBCs, and WBCs. They also contain important dissolved gases like CO₂ and O₂. So the required option is b.
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which of the following are functions of the pancreas? multiple select question. produces bile salts which neutralize stomach acid aids in absorption of digested particles produces enzymes to break down all types of food produces sodium bicarbonate to neutralize the stomach acid
sodium bicarbonate Not Trypsin and amylase because those are digestive enzymes and bile salts are produced by liver.
When should I take sodium bicarbonate?For sodium bicarbonate effervescent powder: To relieve heartburn or sour stomach: Adults and teenagers—3.9 to 10 grams (1 to 2½ teaspoonfuls) in a glass of cold water after meals. However, the dose is usually not more than 19.5 grams (5 teaspoonfuls) a day.
What is the benefit of bicarbonate?Sodium Bicarbonate (baking soda) is a molecule that acts as a buffering agent against acidity in the human body, and appears to enhance physical performance in elite and novice athletes. It also may have health benefits and intestinal side effects. Sodium Bicarbonate is most often used for Muscle Gain & Exercise.
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which member of kingdom protista is the closest relative to the land plants? A) dinoflagellates B) diatoms amoeba spp. C) rhodophytes D) chlorophytes
The member of Kingdom Protista that is the closest relative to the land plants is:
D) Chlorophytes
Chlorophytes, also known as green algae, are thought to be the most closely related to land plants. This is due to the fact that they share many characteristics with terrestrial plants, such as the presence of chlorophyll a and b, the ability to perform photosynthesis, and the use of cellulose as a structural component of their cell walls.
In fact, some green algae species are so similar to land plants that they are referred to as "proto-plants" at times. It is thought that land plants evolved from a type of green algae, possibly via endosymbiosis, a process in which one organism is taken up by another and they evolve together to form a new organism.
While other Kingdom Protista members, such as dinoflagellates, diatoms, and rhodophytes, perform photosynthesis, they are not as closely related to land plants as chlorophytes.
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in which direction is the pre-mrna molecule constructed
Answer:
5' to 3'
°•°•°
Here you go!
orrectly label the following anatomical features of the tibiofemoral joint. Fibula Patellar ligament (cut) Patellar surface Femur Lateral condyle Medial condyle | Lateral meniscus Transverse ligament Tibia (a) Anterior view This is the bone of the upper leg.
The correct labeling of the anatomical features of the tibiofemoral joint is found in the attachment.
What are the anatomical features of the tibiofemoral joint?The tibiofemoral joint is the articulation between the femur bone of the thigh and the tibia bone of the shin in the leg. It is the largest joint in the human body and is commonly known as the knee joint.
The following are the anatomical features of the tibiofemoral joint:
Femur condyles: The femur bone has two rounded condyles (lateral and medial) at its distal end that articulate with the tibia.
Tibia plateau: The superior surface of the tibia has two flat plateau regions (lateral and medial) that articulate with the femur condyles.
Menisci: The knee joint has two C-shaped menisci (medial and lateral) made of fibrocartilage that act as shock absorbers and help to distribute forces across the joint.
Ligaments: Several ligaments stabilize the tibiofemoral joint, including the medial and lateral collateral ligaments on the sides of the joint and the anterior and posterior cruciate ligaments that cross within the joint.
Synovial membrane: The joint is enclosed by a synovial membrane that secretes synovial fluid, which lubricates the joint and reduces friction between the bones.
Bursae: The tibiofemoral joint has several bursae (fluid-filled sacs) that help to reduce friction between tendons and ligaments that pass over the joint.
Together, these anatomical features allow for the complex movements of the knee joint, including flexion, extension, and rotation.
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FILL IN THE BLANK. _________ is best described as the method that provides the woman in labor with continuous information as to what is happening with various bodily functions.
"Childbirth education" is best described as the method that provides the woman in labor with continuous information as to what is happening with various bodily functions.
Childbirth education is a process of providing information, education, and support to expectant parents to help them prepare for childbirth and early parenthood. Childbirth education classes usually cover a range of topics related to pregnancy, labor and delivery, postpartum recovery, breastfeeding, and newborn care.
The goal of childbirth education is to help parents make informed decisions about their care and to increase their confidence and ability to cope with labor and birth. Childbirth education can be provided by a variety of healthcare professionals, including midwives, obstetricians, doulas, and childbirth educators.
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what is muscles of mastication?
Masticatory muscles are those that attach to the mandible and so create movements of the lower jaw.
The masticatory muscles are a set of muscles that are responsible for the chewing movement of the jaw at the temporomandibular (TMJ) joint, they improve the eating process, they help with food crushing, and they also function to approximation the teeth .
The four primary masticatory muscles arise from the surface of the skull and connect to the rami of the mandible at the TMJ. These muscles move in the following ways: elevation, depression, protrusion, retraction, and side to side movement. Three of the primary muscles are in charge of mandibular adduction, while one is in charge of mandibular abduction.
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as pressure increases in lymphatic capillaries, fluid is allowed to regurgitate back into the tissues, true or false?
True. The lymphatic capillaries are very thin-walled vessels that transport lymph (a clear fluid containing immune cells and waste products) from the interstitial spaces of tissues back into the bloodstream. The capillaries have one-way valves that prevent the backflow of lymph, but they can be overwhelmed by high pressure within the capillaries.
What happens If the pressure in the lymphatic capillaries increases?If the pressure in the lymphatic capillaries increases, due to increased volume or decreased drainage capacity, the one-way valves may not be able to close completely, and fluid can regurgitate back into the tissues. This can result in the accumulation of interstitial fluid and edema (swelling), which can cause discomfort and impair tissue function.
The regurgitation of fluid back into the tissues can also occur if the lymphatic vessels are damaged or removed, such as during surgery, radiation therapy, or infection. In such cases, the lymphatic system may be unable to drain fluid effectively, leading to chronic edema and tissue damage.
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the space within a vessel through which blood flows is the ______.
The space within a vessel through which blood flows is called the lumen.
The lumen is the hollow, cylindrical space inside a blood vessel that carries blood throughout the body. The size of the lumen can vary depending on the type of blood vessel and the physiological conditions of the body.
Arteries, which carry oxygenated blood away from the heart, have thicker walls and smaller lumens than veins. This is because arteries need to withstand the high pressure of blood being pumped from the heart. Veins, which carry deoxygenated blood back to the heart, have thinner walls and larger lumens to facilitate the flow of blood.
The lumen of blood vessels is surrounded by endothelial cells, which make up the inner lining of the vessel wall. The endothelial cells help regulate the flow of blood by constricting or dilating the vessel in response to various physiological stimuli.
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What body systems involve the male urethra?
The purpose of the urinary system inside the body is to filter blood & produce urine as a simply passed. The kidney, renal , ureters, bladder, and urethra are among the urinary system's organs.
The sperm go from the through the urethra, which is pronounced to outside the body as fluid known as semen. Since the urethra serves as the passageway for urine as it exits the bladder & leaves the body, it is also a component of the urinary system. the organs, glands, and tissues that are used in reproduction (children). It contains the prostate, testicles in men.The purpose of the urinary system is to filter blood & produce urine as a simply passed. The kidney, renal , ureters, bladder, and urethra are among the urinary system's organs.
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On the basis of energy requirement, which does NOT belong to the group? a. GLUTS moving glucose molecules from the bloodstream into cells. b. The Na/k pumpc. Spraying lysol in one room and over time smelling it in a room where is wasn't sprayed. d. Pure water rushing into celery stalks and bulking them up.
Running pure water into celery stalks and raising them does not belong to the energy requirement group. So, the correct option is D.
What is Energy requirement?Energy requirement is defined as the amount of food energy required to balance energy expenditure to maintain a level of physical activity necessary and desirable consistent with body size, body composition and long-term good health.
Depending on the energy requirement, GLUTS transport glucose molecules from the bloodstream into the cells and belong to the Na/k pump group.
Thus, the correct option is D.
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after dna replication, the newly replicated double-stranded dna molecule is made up of __.
Answer: one new and one old chain of nucleotides.
Explanation:
what is the name for plants and some other organisms that use photosynthesis to produce their own food internally
In the food chain, autotrophs are the producers since they synthesise their own nutrition and energy. Photosynthesis is the technique used by kelp and the majority of other autotrophs to produce energy.
An organism that has the ability to manufacture food on its own by utilising chemicals, light, water, or carbon dioxide is known as an autotroph. Only living things that are plants can grow their own nourishment. In the specialised cells, known as chloroplasts, of the leaves, light supplies the energy to initiate a chemical process.
The chloroplasts' chlorophyll absorbs light energy and converts it to simple sugars from carbon dioxide and water. Just three types of living things can carry out photosynthesis: plants, algae, and a kind of bacteria known as cyanobacteria. They are referred to as photoautotrophs since they produce their own food using light.
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What is the Achilles tendon pinch test?
The Achilles tendon pinch test is a physical exam technique used to assess for the possibility of deep vein thrombosis (DVT) in the leg. DVT is a serious condition where a blood clot forms in a deep vein, typically in the leg, which can lead to pulmonary embolism (PE) if the clot travels to the lungs.
During the test, the healthcare provider applies pressure to the Achilles tendon, which is located at the back of the ankle, with their fingers or a clamp. The test is considered positive if the pressure causes pain or discomfort in the calf or if the calf feels firmer than usual. These findings can suggest the presence of a blood clot in the deep veins of the leg. However, it is important to note that the Achilles tendon pinch test is not considered a definitive test for DVT and it should not be used as the sole basis for diagnosis. Other symptoms and diagnostic tests, such as ultrasound or blood tests, may be necessary to confirm the diagnosis. If DVT is suspected, it is important to seek immediate medical attention as early detection and treatment can help prevent serious complications.
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The diaphragm is innervated by the _________ nerve, which allows it to contract.
A. vagus
B. phrenic
C. hypoglossal
D. vestibulocochlear
Together with its anastomosis with the vagus nerve, the phrenic nerve passes through the diaphragm.
The vagus nerve, which passes through it, innervates the crural portion of the diaphragm.The location of the diaphragm is not far from our lungs.In other words, by helping the lungs expand and contract, the diaphragm facilitates breathing.A muscle called the diaphragm helps you breathe in and out (breathe in and out). This little muscle, which resembles a dome, is situated behind your heart and lungs. It is connected to the sternum, a bone in the middle of your chest, as well as your spine, the bottom of your rib cage, and other bones.
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Which branch of anatomy studies the structural changes as one ages?
The field of anatomy known as developmental anatomy focuses on aging-related structural changes. This area of anatomy begins with the examination of anatomical changes that occur from fertilization to adulthood.
We closely monitor how a person's structural changes over time in this. Structures adjacent to the midline or closer to the midline than another structure are referred to as medial (from the Latin medius, "middle"). For instance, the limbs are lateral to the body of a person.
The term pathology refers to the study of disease. It entails identifying the etiology—the origin—of the disease, comprehending the pathogenesis—the processes by which it develops, the structural alterations brought on by the disease process—the morphological alterations, and the functional repercussions.
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Correct Question:
What type of branch of anatomy studies the structural changes as one ages?
which field of biology is also an interdisciplinary science in its own right
Neurobiology field of biology is also an interdisciplinary science in its own right.
Neurobiology is a scientific subject that studies the nerve system and brain function. Neurobiology research findings improve both neuroscience and physiology. The central and peripheral nervous systems are both part of the vertebrate nervous system.
Why do we research neurobiology?The study of the nervous system enhances our understanding of our basic biology and how our bodies function. Understanding how things work in general might help throw light on what might happen when there are issues. It can assist researchers in discovering strategies to prevent or treat disorders affecting the brain, neurological system, and body.
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rachel carson helped usher in the modern environmental movement in the 1960s with her book silent spring, which alerted the public to threats from __. multiple choice question. overhunting of birds
With her book Silent Spring, which warned the public of the dangers posed by pollution and dangerous chemicals, Rachel Carson helped launch the modern environmental movement in the 1960s.
In the years that followed the Rachel controversy surrounding Silent Spring, the United States Environmental Protection Agency was established, and a number of laws were passed to protect the environment and public health, including one in 1972 that outlawed the domestic use of DDT because of its widespread overuse and detrimental effects on the environment.
The environmental effects of the usage of pesticides like DDT were the main topic of Rachel Carson's 1962 book Silent Spring, which has been called a "landmark literary work of the 20th century." Carson, unfortunately, experienced hostility and prejudice in response to her work.
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Correct Question:
Rachel Carson helps usher in the modern environmental movement in the 1960s with her book Silent Spring, which alerted the public to threats from _____________.
which of the choices below is the parent cell for all formed elements of blood? which of the choices below is the parent cell for all formed elements of blood? megakaryocyte hematopoietic stem cell polymorphonuclear cell normoblast
Answer:
Hemocytoblast! Hope this helps you.