Answer:
The following that is true about the statements is letter A, Both (A ) and (R) are true, but (R) is not the correct explanation of A.
Explanation:
A mutagen is any physical, chemical or biological agent that, when exposed to cells, is capable of inducing a mutation, that is, damage to the DNA molecule that is not repaired at the time of cell replication, and is passed on to subsequent generations.
With that being said, Radiation, UV light, and chemicals are exemples of mutagens.
Examples of mutation would be: gene or chromosomal mutations. Gene mutations can be by substitution, insertion or deletion; on the other hand, chromosomal mutations can be structural or numerical.
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The bicep muscle has an attachment point at the shoulder and one in the upper forearm. Look at these images of the bones of the arm. Imagine that the point of the arrow is where the force of the biceps muscle is applied to the bone.
Which image would result in the biceps muscle contracting and the forearm being lifted?
A
B
C
D
Option B represents the image would result in the biceps muscle contracting and the forearm being lifted.
What is Biceps muscle?This is the muscle which is found in the front region of the upper arm and is involved various forms of movement.
Contraction means shortening of the biceps which is made possible when a force acts upwards thereby resulting in the forearm being lifted. This is why B was chosen as the most appropriate choice.
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Answer: A
Explanation: the other guy is wrong.......but this is the right answer for endgenuity!! Hope this helps :D
Leucocytes or white blood cells fight infection. They have the ability to leave the bloodstream and enter a damaged or infected area. What is the name of this process of leaving the bloodstream
Diapedesis is the process in which white blood cells come out of the blood vessels into the surrounding area in case of injuries.
WBC is key to immunity:
Lymphocytes are immune cells found in the blood and lymph tissue. T and B lymphocytes are the two main types. Macrophages are large white blood cells that reside in tissues that specialize in engulfing and digesting cellular debris, pathogens and other foreign substances in the body.
function of WBC:
White blood cells are part of the body's immune system. They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).
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Serotonin (5-hydroxytryptamine, 5-HT) is a neurotransmitter with receptors (5-HT receptors) located in cells throughout the body. There are more than a dozen different types of serotonin receptors that fall into several different classes. One class consists of serotonin-activated ion channels and the other receptor classes are G-protein-coupled receptors that associate with different G proteins. The 5-HT7A receptor couples to Gs and activates adenylyl cyclase, while the 5-HT2B receptor couples to G, and activates phospholipase C. The diversity of receptor types has led pharmacologists to search for drugs that will bind to and modulate just a single receptor class in order to limit systemic side effects (see 5-Hydroxytryptamine Receptor Subtypes and their Modulators with Therapeutic Potentials). Place into bins the downstream effects predicted for a drug that exclusively activates the 5-HT7A receptor versus a drug that exclusively activates the 5-HT2B receptor. Items (5 items) (Drag and drop into the appropriate area below) Cytosolic calcium increase PKC activation PKA activation CAMP production IP 3 production Receptor subtype 5-HT7A 5-HT2B
The monoamine neurotransmitter 5-hydroxytryptamine, or serotonin, is derived from tryptophan and is synthesized both centrally and systemically.
14 structurally and functionally distinct receptor subtypes have been identified for serotonin, each mediating the action of neurotransmitters via a series of downstream signaling molecules and effectors.
Although most commonly described for its role in the pathogenesis of neuropsychiatric and mood disorders, serotonin is involved in many basic physiological processes including apoptosis, mitochondrial biosynthesis, cell proliferation, and migration. increase. Its role as a neurotransmitter is also manifested in pathogenic conditions ranging from anorexia nervosa to cancer.
This requires an understanding of the signaling mechanisms underlying the serotonergic system, which has led to the creation of an integrated pathway map that provides resources for future biomedical research in this pathway.
Using a rigorous set of NetPath annotation criteria, we manually curated the molecular responses associated with serotonin and its receptors from the published literature. Response categories included molecular association, activation/inhibition, post-translational modification, transport, and gene regulation at the transcriptional and translational levels.
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The function of the root hair plexus is to ________. The function of the root hair plexus is to ________. serve as a source for new epidermal cells for hair growth after the resting stage has passed bind the hair root to the dermis allow the hair to assist in touch sensation cause apocrine gland secretion into the hair follicle
The function of the root hair plexus is to allow the hair to assist in touch sensation. Thus, the correct option is C.
What is Root hair plexus?Root hair plexus may be expressed as a remarkable class of nerve fiber endings and functions as a very sensitive mechanoreceptor for touch sensation.
The root hair plexus surrounds the hair follicle which belongs to the rapidly adapting group of mechanoreceptors. Due to this property, they allow the root hair plexus to assist in touch sensation.
Therefore, the correct option for this question is C.
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Together, all of the alleles contained within a group of interbreeding individuals are known as a Group of answer choices clinal distribution. polymorphism. population. gene pool.
Together, all of the alleles contained within a group of interbreeding individuals are known as option(d) i.e, Gene pool.
What is a Gene pool?A gene pool is a collection of all the genes (including alleles) found in a population or species that is capable of reproduction. A big gene pool has a wide range of genetic diversity and is more resilient to environmental stresses.
Frogs in a pond, trees in a forest, or residents of a municipality are a few examples.
Each and every human on Earth has the ability to interbreed with others of the same species. Therefore, every allele of the roughly 19,000–20,000 human genes found in our DNA makes up the human gene pool.
Through evolution, the gene pool of a population can evolve over time. Numerous processes, such as mutations, natural selection, and genetic drift, can cause this.
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The ____________ is adjacent to the duodenum of the small intestines. It is divided into four parts from right to left: ____________ , ____________ , ____________ , and ____________ . The tip of the tail is adjacent to the ____________ . The pancreas is ____________ gland that is located in the ____________ .
The head is adjacent to the duodenum of the small intestines. It is divided into four parts from right to left: head, neck, body, and tail. The tip of the tail is adjacent to the spleen. The pancreas is an exocrine gland that is located in the stomach.
It's on your abdomen, just behind your stomach. It's the size of your hand. During digestion, the pancreas makes pancreatic juice called enzymes. These enzymes break down sugar, fat, and starch. Your pancreas also helps your digestive system by producing hormones.
An organ produces one or more substances such as hormones, digestive juices, sweat, tears, saliva, and milk. Endocrine glands release substances directly into the bloodstream. Exocrine glands secrete substances into tubes or openings inside or outside the body.
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If we pric a plant and an animal cell, which one of them would lose its shape and why?
Answer:
Explanation:the animal cell would lose its shape as the plant cell has a cell wall which gives shape and protection but the animal cell don't have a cell wall.
George is generally sensory challenged. B. Men have less sensitive olfactory receptors. C. Estrogen enhances olfaction. D. Betty has never smelled tuna. E. None of the above answers are correct.
If Females Can More Correctly Identify The Smells Of Certain Items, Then B. Men have less sensitive olfactory receptors.
A proper sense of smell depends on the olfactory bulb since it sends scent information from the nose to the brain.Compared to men, women have more cells in the olfactory bulb, the part of the brain responsible for smell perception.Women smell things better than males because they have more brain cells in the part of the brain responsible for smell. This area of the brain, also referred to as the "olfactory bulb," is in charge of receiving information about scents from the nose.Additionally, the olfactory bulbs of women have around 50% more neurons than those of men, proving that women have far stronger noses than men.learn more about olfactory receptors here: https://brainly.com/question/13153033
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What are the advantages and disadvantages to sunscreens containing common active ingredients such as oxybenzone, octocrylene, and homosalate?.
Sunscreens contain chemical ingredients in their compositions, such as avobenzone, oxybenzone, octocrylene, homosalate, octisalate and octinoxate, which have been linked to health problems such as hormonal disruptions, cancer, as well as liver and kidney changes.
What is oxybenzone, octocrylene, and homosalate bad for?Oxybenzone, octocrylene, and homosalateto protect from UVA also penetrates deep into the skin. The penetration into the human body can cause several problems in human health such as
allergic reactionscell mutationderegulation of hormonal processes, etc.With this information, we can conclude that Oxybenzone, octocrylene, and homosalateto is considered a hazardous eye irritant and, as an allergen, is also known to cause skin allergies.
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A scientist hypothesized that oxygen atoms from both carbon dioxide and water are used to make glucose during photosynthesis. however, experimental results using oxygen isotopes showed that all of the oxygen from the water ended up in the oxygen molecules that were produced. none of the oxygen from water was found in glucose. what should the scientist do to best gain scientific understanding of this topic?
Answer:
1) Consider what might have happened and modify the experimental method to retest the hypothesis differently.
2) Toss out any incorrect results that do not support the original hypothesis and repeat the experiment using the same methods.
3) Examine the procedural flaws that occurred during the experiment and summarize them in a conclusion statement.
4) Repeat the experiment, but this time adjust the new data to support the original hypothesis.
5) Toss out any incorrect results that do not support the original hypothesis and repeat the experiment using the same methods.
Consider a cell that has four pairs of chromosomes. What is the number of possible chromosome orientations in that cell?.
The number of possible chromosome orientations in a cell containing 4 pairs of chromosomes are: 16.
The formula to calculate the possible orientations of chromosomes is 2ⁿ. Here, n stands for the number of chromosome pairs. From the question we know that the chromosome pairs are 4 in number and hence 2⁴ = 16.
Chromosomes are the carriers of genetic information and are crucial for the inheritance of traits from one generation to the next. They are long, thread-like structures made of DNA (deoxyribonucleic acid) and proteins. They are found inside the nucleus of eukaryotic cells, which are cells that have a defined nucleus enclosed within a membrane.
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If a cell was unable to maintain homeostasis and the temperature became too hot how could this prevent atp synthase from performing its function
If a cell is unable to maintain homeostasis and the temperature increases, the activity of ATP synthase is subsequently inhibited.
ATP synthase is an enzyme that is present in the mitochondria of a cell. This enzyme is a complex molecule that has multiple parts. The primary function of this enzyme is to synthesize ATP molecules, which are the energy currency of a cell. This ATP synthase forms a vesicle along the lines of the mitochondrial membrane which is a necessary step for the synthesis of ATP molecules. The ATP synthase enzyme synthesizes ATP molecules from ADP and phosphates inside the mitochondria.
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Please help me with this question
Answer:
B thx hope works
Explanation:
Answer:
You have the right one selected ^^
Explanation:
Bacterial cells have both DNA and mitochondria
A class or broad-spectrum bacteriostatic antibiotics that are produced by soil organisms and inhibit protein synthesis by binding to bacterial ribosomes are known as
A class of broad-spectrum bacteriostatic antibiotics that are produced by soil organisms and inhibit protein synthesis by binding to bacterial ribosomes is known as Chloramphenicol.
Chloramphenicol is a drug used to treat superficial eye infections such as bacterial conjunctivitis and otitis externa. It was also used to treat typhoid fever and cholera. Chloramphenicol is an antibiotic and belongs to the class of antibacterial agents that inhibit protein synthesis.
Chloramphenicol is used to treat serious infections in different parts of the body. It may also be given with other antibiotics. However, Chlorum phenicole should not be used to prevent colds, flu, other viral infections, sore throats, other mild infections, or infections.
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how are fruits and vegetables made available in the off season
Answer:
They can preserve food in the cans, in the refrigerator and make them frozen, in the green houses to preserve them in the off season.
This is all how you can preserve food in the off season.
Hope this helps.Good luck ✅.A beetle species has two distinct male morphs: a large one similar to males in closely related species and a smaller one that is successful by sneaking around the guarding behavior of the larger males. This species is a clear example of _________.
This species is a clear example of Indirect intersexual selection.
Darwin distinguished between Intrasexual and intersexual sexual selection. While Intrasexual selection happens when members of the same sex fight for mates, intersexual selection takes place when one sex selects the members of the opposite sex to mate with.Interactions between a species' males and females lead to intersexual selection. Males most often develop and exhibit features or behavioral patterns that appeal to the opposite sex. Such characteristics include, for instance, a bird's plumage, a frog's mating cry, and a fish's courtship behavior.learn more about intersexual selection here: https://brainly.com/question/14977521
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It is known that certain macroinvertebrates (small aquatic organisms) are sensitive to polluted waters. Stonefly larvae, for example, are very sensitive to polluted water and low dissolved oxygen. You collect a lot of stonefly larvae in your study of a local stream and conclude that this stream has high levels of dissolved oxygen and is minimally polluted. Your conclusion is an example of Multiple Choice inductive reasoning. deductive reasoning.
Stonefly larvae, for example, are very sensitive to polluted water and low dissolved oxygen. You collect a lot of stonefly larvae in your study of a local stream and conclude that this stream has high levels of dissolved oxygen and is minimally polluted. Your conclusion is an example of deductive reasoning.
In both science and daily life, deductive reasoning is a sort of deduction. It occurs when you combine two genuine premises to arrive at a conclusion. As an illustration, A = B. B and C are also equal. Deductive reasoning allows you to draw the conclusion that A and C are equal given those two statements.Every dolphin is a mammal, Every mammal possesses kidneys.You can draw the conclusion that all dolphins have kidneys through deductive reasoning. Keep in mind that for this to function, both assertions must be true.
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CHEGGViruses _________. All of the statements are correct are parasitic microorganisms can infect bacteria or eukaryotes have either DNA or RNA as genetic material are acellular infectious agents
Viruses are seen as borderline between living and non-living things
However, viruses possess the following when they are living:
Microscopic organismsThey are highly pathogenic; that is: they are infectious agentsThey contain either RNA or DNA as their genetic materialWhat are infectious organisms/agents?These are organisms which causes diseases to both plants and animals.
Therefore, viruses are highly pathogenic; that is: they are infectious agents and are also microscopic organisms
Complete question:
All of the statement are correct about parasitic microorganisms
(a) Viruses have either DNA or RNA as genetic material
(b) Viruses are pathogenic organisms
(c) Parasitic bacteria causes diseases to plants and animals
(d) Viruses are acellular infectious agents
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The preganglionic neuron cell bodies of the S2-S4 spinal cord segments are the origin of preganglionic parasympathetic axons that branch to form the ______.
The preganglionic parasympathetic axons branch to form the pelvic splanchnic nerves.
What is Parasympathetic division of the ANS?It originates from the preganglionic neurons located in brainstem nuclei and S2–S4 segments of spinal cord. Some of the preganglionic parasympathetic axons originate from preganglionic neuron cell bodies housed within the lateral gray matter of the S2–S4 spinal cord segments.These preganglionic parasympathetic axons branch to form the pelvic splanchnic (visceral) nerves, which contribute to the superior and inferior hypogastric plexus.The parasympathetic and sympathetic divisions of the ANS have the same basic components, but they differ in their origins, locations of the preganglionic cell bodies, axon lengths, and amount of branching.Learn about Sympathetic preganglionic neurons here
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did not eat breakfast this morning before she headed out to class. As a result the hormone ________ will be released by her _________ in an effort to raise blood glucose levels.
The hormone cortisol will be released by her liver in an effort to raise blood glucose levels.
Why is blood sugar high before breakfast in the morning?Hormones like cortisol and growth hormone indicates the liver to increase the production of glucose in the early morning, which gives us energy to wake up. In order to maintain healthy blood glucose levels, this causes the pancreatic beta cells to release insulin.
Blood sugar levels will already be lower if we don't eat, and any medication we take could further lower them, which could result in hypoglycemia. We can become unsteady, faint, or even fall into a coma as a result of hypoglycemia. We run the risk of developing too-high blood sugar levels when we eat to "break" your fast.
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Read the passage to answer the question.
Even though scorpions are related to spiders,
there are many differences between the two
organisms. One difference is that scorpion
young do not hatch from eggs as spiders do.
Scorpions are born live, two at a time, and they
immediately crawl onto the mother's back for
protection and care. They remain there for two
weeks as they grow big enough to take care of
themselves.
Which cellular process do scorpions most likely
go through to produce
ATP?
anaerobic respiration
O aerobic respiration
O alcohol fermentation
O lactic acid fermentation
Short notes on dispersal of seed
The picture below shows a soil texture triangle.
Image of a soil texture triangle. Each side is labeled one of the three main soil types—silt, clay, and sand—and is divided into percentages, from 0 to 100. Each point in the triangle corresponds to a different soil texture, consisting of a different combination of silty, sandy, and clay soils. For instance, the top part of the triangle contains soils that range from approximately 50 percent clay to 100 percent clay. All these different soils are considered clays. Soils located farther down the triangle contain an increasingly small percentage of clay; for example, silty clay soils are primarily silt, with more clay than sand, and sandy clay soils are primarily sand, with more clay than silt. Soils located in the middle of the triangle contain roughly equal percentages of clay, sand, and silt; these soils are called “loam.” There are silty loam soils, which contain more silt than clay or sand; clay loam soils, which contain more clay than silt or sand, and sandy loam soils, which contain more sand than silt or clay. There are also silty clay loam soils and sandy clay loam soils.
One farmer plans to grow soybean. Soybeans grow best in medium loam soil. Which of these is the most likely soil sample that the farmer would select to grow soybeans?
sample containing 30 percent sand, 35 percent clay, and 35 percent silt
sample containing 25 percent sand, 15 percent clay, and 60 percent silt
sample containing 40 percent sand, 15 percent clay, and 45 percent silt
sample containing 55 percent sand, 30 percent clay, and 15 percent silt
Soybean is best grown on a soil of 30 percent sand, 35 percent clay, and 35 percent silt.
What soil is best for soybean?The soil is the outermost part of the earth crust on which plants grow. There are several types of soils but not all soils are suitable for all kinds of plants. Certain plants tends to thrive better on certain types of soil.
The type of soil that can be used to grow soybean is a soil composed of 30 percent sand, 35 percent clay, and 35 percent silt.
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Lactose intolerance a. arises from inability to metabolize the disaccharide lactose b. depends on a deficiency of sucrose in the diet c. is based on the composition of lactose, consisting glucose and fructose in glycosidic linkage d. arises because lactose is a dimer of galactose
b. depends on a deficiency of sucrose in the diet is Lactose intolerance.
Signs of lactose intolerance include nausea, cramps, fuel, bloating, or diarrhea within 30 minutes to 2 hours after ingesting milk or dairy products. Signs occur due to the fact there isn't always sufficient lactase being produced by the body to digest the lactose fed on.
Without lactase, the body can't well digest food that has lactose in it. because of this if you consume dairy meals, the lactose from these foods will skip into your intestine, which could cause fuel, cramps, a bloated feeling, and diarrhea, that's free watery poop.
You could take lactase pills before you eat or drink milk products. you may additionally upload lactase drops to exploit before you drink it. The lactase breaks down the lactose in food and drinks, lowering your chances of having lactose intolerance signs and symptoms. test along with your medical doctor earlier than using lactase merchandise.
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The process by which oxygen and carbon dioxide are exchanged between the body and its environment through the movement of air in and out of the lungs is:
Answer:
the answer is Respiration
Determine if the following statement is true or false and why. “Primary and Secondary Consumers lose about 30% of the energy they absorb from food as heat.” A. False, it should read “Only Secondary Consumers lose about 30% of the energy they absorb from food as heat.” B. True C. False, it should read “Primary Consumers lose about 5% of the energy they absorb from food as heat, while Secondary Consumers lose 30% as heat.” D. False, it should read “Primary and Secondary Consumers lose about 5% of the energy they absorb from food as heat.”
Answer:
Explanation:
They loose 30% energy from the food they consume because heat make animals and people sweat therefore is where the 30% is drained from
49. The chemical agent or hazardous material that interferes with the body's ability to transfer oxygen to the cells is:
The chemical agent or hazardous material that interferes with the body's ability to transfer oxygen to the cells is: Hydrogen cyanide
It is an asphyxiant. It obstructs the utilization of oxygen in the organ of the body which is more delicate to low oxygen levels: the brain, the heart and veins, and the lungs. Hydrogen cyanide has a particularly harsh almond scent in any case it portrays a smelly "old shoes smell". It likewise has an unpleasant consuming taste and is much of the time utilized as a solution in water.
Hydrogen cyanide is also known as a synthetic military chemical. It is utilized in industry in mining, electroplating, fumigation, and the development of fibers, plastics, colors, and pesticides.
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If you have long hair, you should a. tie it back before performing lab work. b. ask your lab partner to cut your hair shoulder-length. c. try to keep your hair from interfering with lab work. d. do nothing, as it is does not create a hazard.
you should
a. tie it back before performing lab work.
Using a Bunsen burner can cause your hair to loosen and ignite. Bring only your essentials to the lab. This means that all personal belongings such as bags and jackets should be kept outside. Long hair and loose clothing that can get caught in glassware or pose a danger in the laboratory should be withdrawn.
Wear proper clothing when working in the laboratory. Long hair, hanging jewels, loose clothing, and baggy clothing are dangerous in the laboratory. Long hair should be tied at the back. You need to secure the removed jewelery (if it's hanging long) and loose clothing. Shoes should completely cover your feet.
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Question 3 of 10
A science student makes the following statement.
Plant growth is affected by the color of light.
What is the student doing?
A. Forming a hypothesis
B. Making a prediction
C. Analyzing results
D. Collecting data
Answer:
The answer to your question is: D. collecting data
Explanation:
During this process , researchers would use their observational skills and record every notable occurrence that happen to the variables.
"Data collection is the process of gathering and measuring information on variables of interest, in an established systematic fashion that enables one to answer stated research questions, test hypotheses, and evaluate outcomes."
I hope this helps and have a great day!
Nerve cells do not begin to develop until after a child is born. please select the best answer from the choices provided t f
Answer:
False
Explanation:
Before a child is born, their nerve cells proliferate. Before birth, twice as many neurons is produced by the unborn child's brain. This can be considered a safety margin when a newborn is making their arrival to the world.
Excess neurons ⇒ Shed into Utero