In nerves, fascicles are covered by the____ while the entire nerve is covered by the _______:
Answers
In nerves, fascicles are covered by the Perineurium while the entire nerve is covered by the Epineurium.
The endoneurium consists of an inner sleeve of material called the glycocalyx and a mesh of collagen. Nerves are bundled along with blood vessels, which provide essential nutrients and energy to the enclosed, and metabolically demanding, neurons. Within the endoneurium, individual nerve fibers are surrounded by a liquid called the endoneuria fluid.
The endoneurium has properties analogous to the blood–brain barrier. It prevents certain molecules from crossing from the blood into the endoneuria fluid. In this respect, endoneuria fluid is similar to cerebrospinal fluid in the central nervous system. During nerve irritation or injury, the amount of endoneuria fluid may increase at the site of damage. This increase in fluid can be visualized using magnetic resonance neurography to diagnose nerve damage.
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Related Questions
List three sources of freshwater.
Rain, River, ocean
Answers
Answer:
Sources of freshwater: rivers, lakes, reservoirs, and creeks and streams.
Cereals and legumes are complementary in the diet because Group of answer choices Cereals counteract the antinutritional factors in legumes A diet combining legumes and cereals will have a good balance of essential amino acids Cereals are high in lysine Legumes are high in cysteine and methionine
Answers
Answer:
A diet combining legumes and cereals will have a good balance of essential amino acids
Explanation:
Cereals are grains that are rich in vitamins, carbohydrates, protein and other essential nutrients, they include wheat, rice, sorghum etc. Legumes include a wide range of seeds, fruits, nuts, vegetables that are rich in proteins, carbohydrates and other nutrients, examples include peas, beans, lentils etc.
Cereals and legumes are referred to as staple foods, they are usually used to complement each other because combining them will result in a good balance of essential amino acids. In cereals, lysine is a limiting amino acid but is usually in high amounts in legumes. However, in legumes cysteine, trypthophan and methionine are the limiting amino acids but are found in cereals. Therefore, this makes legumes and cereals complementary in the diet as it significantly increases the protein quality of the diet.
A widow's peak hairline (W) is dominant to straight hairline (w). Cross a heterozygous widow's
peak hairline person with a straight hairline person. What are the genotypic and phenotypic
ratios of their offspring
Answers
Answer:
Use a punnett square! I'll attach an example.
Genotype - Genetic constitution of dominant and recessive traits inherited from parents. BB, Bb, & bb can be used to represent these.
Phenotype - Observable. If a dominant trait is present, it shows as the phenotype. For example, brown hair is dominant to blonde hair. A person with a BB or Bb genotype will have brown hair, but a person with a bb genotype will have blonde hair.
Statistically, they have a 50% chance of a child with a widow's peak, and a 50% chance of a child with a straight hairline.
The genotypic and phenotypic ratios of their offspring are 50% and 50% ratio of the child.
What are the heterozygous ?
The heterozygous are the condition where you have inherited different forms of a particular gene from each of your biological parents. By different shapes we generally mean that there are different parts of the gene where the sequence is different.
Genotype - Genetic charter of dominant and recessive developments inherited from parents. BB, Bb, & bb may be used to symbolize these.Phenotype - Observable. If a dominant trait is present, it indicates because the phenotype. For example, brown hair is dominant to blonde hair. A individual with a BB or Bb genotype may have brown hair, however someone with a bb genotype may have blonde hair.Statistically, they've a 50% risk of a toddler with a widow's peak, and a 50% risk of a toddler with a instantly hairline.
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As you examine a slide under the microscope, you see multiple cell types surrounded by abundant ecm and protein fibers. You identify this tissue type as __________.
Answers
As you examine a slide under the microscope, you see multiple cell types surrounded by abundant ecm and protein fibers. You identify this tissue type as connective tissue.
Tissue that provides structure, support, and protection to other human tissues and organs. Connective tissue not only helps transport nutrients and other substances between tissues and organs, but it also stores fat and helps repair damaged tissue.A gel-like substance that contains fibers and cells. make up the connective tissue. Connective tissue is a series of tissues found throughout the body that maintain the shape of the body and its organs and provide internal cohesion and support.Connective tissue includes bones, ligaments, tendons, cartilage, and adipose tissue. It includes more specialized and well-known variations such as and various types of fibrous tissue that differ only in density and cellular structure. Most of the organs in the abdominal cavity are connected to the abdominal wall by a band of membranes called the mesentery.Therefore, the correct answer is connective tissue.
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At which instance contain 1 molecule of substances from following?
(1). Hydrogen atoms of 2g of Hydrogen
(2). Oxygen atoms of 8g of Oxygen
(3). Water molecules of 8g of water
(4). Methane molecules of 16g of methane
Answers
Suppose you are an architect from a
cold climate who has been asked to design a building
for Tucson, Arizona, where the temperature averages
22°C and can reach 50°C in summer. What do you
know about keeping buildings warm that will help
a building stay cool in hot weather
Answers
describe the primary function of the three types of muscle
Answers
The primary function of the three types of muscle is to generate force and enable movement in the body.
Muscles play a crucial role in our ability to move and perform various physical activities. There are three types of muscles: skeletal, smooth, and cardiac. Skeletal muscles are attached to the bones and responsible for voluntary movements, such as walking, running, and lifting objects. These muscles work in pairs, with one muscle contracting while the other relaxes, allowing for coordinated movement. They also help maintain posture and stabilize joints.
Smooth muscles, found in the walls of organs and blood vessels, have an involuntary function. They are responsible for the rhythmic contractions that occur in our digestive system, allowing for the movement of food through the gastrointestinal tract. Smooth muscles also regulate the diameter of blood vessels, influencing blood flow and blood pressure.
Cardiac muscle, found exclusively in the heart, is responsible for pumping blood throughout the body. It contracts rhythmically and involuntarily, ensuring a continuous circulation of oxygenated blood to all organs and tissues. The unique structure of cardiac muscle allows for efficient and synchronized contractions, enabling the heart to function as a powerful pump.
In summary, the primary function of skeletal muscles is voluntary movement and joint stabilization, smooth muscles regulate movement in internal organs and blood vessels, and cardiac muscles ensure the continuous pumping of blood throughout the body.
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Onepage review on why understanding gas and vapors in a work setting is important and what we can do in our workplace to prevent accidents with gases and vapors.
Answers
Understanding gas and vapours in a work setting is incredibly important for workplace safety. Gas and vapours can contain noxious substances that, if exposed to, can lead to serious injury or health implications.
In order to prevent such accidents, employers must perform risk assessments in order to assess and identify any areas of risk and put in place control measures to limit them. If gas and vapours are used onsite, then suitable ventilation and extraction systems should be in place.
Employers should also ensure that their staff are aware of the potential risks associated with such substances and provide adequate training and instruction in how to work safely. Finally, employers should also check that any necessary personal protective equipment is provided and communications are in place to be able to notify relevant emergancy responders in case of an accident.
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What do biologists call a virus
that infects bacteria?
A
DNA
B
a bacteriophage
Answers
Answer:
Bacteriophage
Explanation:
which is the best explanation for where different types if minerals are found in earth
Answers
Answer:
Everywhere foods, earth, plants, etc..
Explanation:
how many calories are in an average trick-or-treaters halloween stash?
Answers
The number of calories on a Halloween stash depends on the type of candies and the number of units of each. If the stash contains 5 units of each of these candies: chocolate bars, taffies, lollypops, and candy corn the total number of calories is 1,650.
Calories are the most common unit used to define the energy a specific food gives to your body. For example, an apple has 52 calories, while a banana has 89 calories.
Considering this, in a Halloween stash the calories depend on two factors:
The types of candies or productsThe units of each oneLet's suppose there are 5 units of each of the following candies:
Chocolate barsTaffiesLollypopsCandy cornLet's now calculate the calories
Chocolate bars = 220 calories x 5 units = 1,100 caloriesTaffies = 20 calories x 5 units = 100 caloriesLollypops = 83 calories x 5 units = 415 caloriesCandy corn = 7 calories x 5 = 35 caloriesAdd all the previous results:
1,100 + 100 + 415 + 35 = 1,650 calories in total
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what 5 sections are ice cores divided into
Answers
Answer:
Ice cores can tell scientists about temperature, precipitation, atmospheric composition, volcanic activity, and even wind patterns. The thickness of each layer allows scientists to determine how much snow fell in the area during a particular year.
Explanation:
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True/False: dna polymerase iii does not dissociate from the dna template strand after it has catalyzed the joining of two adjacent nucleotides so it is described as a enzyme.
Answers
True: DNA polymerase III does not dissociate from the DNA template strand after it has catalyzed the joining of two adjacent nucleotides, so it is described as an enzyme.
What is DNA polymerase III? DNA polymerase III is an enzyme that assists in the replication of DNA. It is a component of the replisome, a set of proteins that work together to copy DNA. DNA polymerase III has a proofreading feature, which means it can detect and correct errors that occur during DNA replication. It also plays a critical role in the elongation of new DNA strands. DNA polymerase III has a high processivity, which means it can catalyze the joining of numerous nucleotides before detaching from the DNA template strand. DNA polymerase III is an enzyme that remains connected to the DNA template strand until replication is complete.
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In ur own words, Explain how natural selection befits a population
Answers
Which of the following contains hydrolytic enzymes? A) lysosome B) vacuole C) mitochondrion D) Golgi apparatus E) peroxisome
Answers
Lysosomes are membrane-enclosed vesicles that form in the Golgi apparatus and contain hydrolytic enzymes (hydrolases).
What are lysosomes?They are cellular organelles in the form of membranous vesicles that contain hydrolytic enzymes for the controlled intracellular digestion of macromolecules.
Characteristics of lysosomesThey contain different hydrolytic enzymes, that is, digestive enzymes, capable of breaking down complex molecules (proteins, lipids, nucleic acids and carbohydrates) into much simpler molecules.They are connected to the rest of the cell through a series of transport mechanisms that lead from the outside of the cell to the inside, or vice versa.Therefore, we can conclude that lysosomes, due to their content in hydrolytic enzymes, serve to degrade complex molecules into simpler and more manageable ones.
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The cell organelle that contains hydrolytic enzymes is the lysosome. That is option A.
Enzymes and functionsEnzymes are those proteins that helps to speed up the metabolic reactions of the body. These chemical reactions include:
respiration, digesting food, muscle and nerve function.The cell contains membrane bound organelles that perform specific functions in the cell. Example of such organelle is the lysosome.
The lysosome contain hydrolytic enzymes called lysozymes that break down excess or worn-out cell parts and may be used to destroy invading viruses and bacteria.
Therefore, the cell organelle that contains hydrolytic enzymes is the lysosome.
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which of the fayum primates may be linked to the platyrrhines as evidenced by the presence of three premolars? group of answer choices proconsulids parapithecids propliopithecids oligopithecids previousnext
Answers
The fayum primates may be linked to the platyrrhines as evidenced by the presence of three premolars because there are three premolars, parapithecids may be related to platyrrhines.
The required details about parapithecids is mentioned in below paragraph.
The higher primates are most evolved than the parapithecids. Its basic features are its dental formula, which is the same as that of New World Monkeys. We can infer from this that all higher primates share the same fundamental dental equation, and that it existed before the division between Old World and New World monkeys.
Primates belonging to the extinct Parapithecidae family lived in Egypt throughout the Eocene and Oligocene eras. Additionally, the family occasionally includes Eocene fossils from Myanmar. They possessed short faces and jaws that resembled tarsiers, yet they shared some dental characteristics with Condylarthra. They belong to the superfamily Parapithecoidea and are maybe equally connected to Ceboidea, Cercopithecoidea, and Hominoidea, while it is unclear where Parapithecoidea actually belongs. Its postcranial skeleton is comparable to that of extant species of pronograde leapers, indicating that its likely mode of movement was pronograde leaping, and it looks to have been arboreal, diurnal, and frugivorous.
Primates also appears to have lived in social groupings.
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Which plants have a taproot system? Choose all that apply.
corn
carrots
wheat
dandelions
Answers
write four sentences on the basis of the given picture ?
Answers
Answer:
A little girl is playing with her dog with a ball.
An old woman (I could be wrong, it could be the 'mother')brought some drinks to the family.
A man (or the father) is reading a newspaper on his chair by the desk.
A little boy is playing with his grandparents.
Explanation:
if this is not correct, please tell me
The diagram below best describes what interdependence of photosynthesis and cellular respiration? *
A. The products of Photosynthesis are carbon dioxide and water to be used in cellular respiration
B. The reactants of Photosynthesis are the products of cellular respiration
C. The reactants of Photosynthesis are sugar and oxygen to be used in Cellular respiration
D. The products of Photosynthesis are the same as the products of Cellular respiration
Answers
Answer: B
Explanation:
During photosynthesis CO2 reacts with water to form glucose and Oxygen.
During cellular respiration glucose and Oxygen react to produce CO2, H2O and energy. Thus the answer is B.
Answer:
Answer: B
Explanation:
HELP PLEASE! WILL GIVE BRAINLY! which of.the following shows the levels of cellular organization from least complex to most complex
Answers
Answer:
The last one im pretty sure
Explanation:
Answer:
D, cell > tissue > organ
Explanation:
Basically, it is a progression. Cells are incredibly basic, but when you have a lot of them together you get tissues. Certain tissues repeated create organs. :)
which part of the chemical structure of a local anesthetic determines the pattern of biotransformation of the anesthetic? group of answer choices lipophilic part hydrophilic part intermediate chain all options listed
Answers
The chemical structure of a local anesthetic is composed of a lipophilic part, a hydrophilic part, and an intermediate chain.So all the options listed are correct.
The lipophilic part is the part that is soluble in lipids or fats and is generally the most potent part of the drug. This part of the chemical structure is responsible for the drug’s ability to cross the cell membrane, which is essential for its anesthetic activity. The hydrophilic part is the part that is soluble in water and is responsible for the drug’s ability to be absorbed and distributed in the body. The intermediate chain is composed of molecules that link the lipophilic and hydrophilic parts together.
The pattern of biotransformation of a local anesthetic is determined by the lipophilic part of its chemical structure. This part determines the rate of absorption and the amount of drug that can pass through the cell membrane. The hydrophilic part of the chemical structure affects the rate of elimination of the drug from the body and its distribution in the body. The intermediate chain affects the stability of the drug in the body and its binding ability to proteins.
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A short hike through the Sandia Mountains from early spring to late summer will often reveal several different species of penstemon. The Rocky Mountain penstemon blooms in the spring while the very similar inflated penstemon blooms in late summer. As a result, hybrids are rarely encountered.
Answers
Complete question:
Categorize the following situation as either a pre- or postzygotic isolating mechanism and then specify which type of pre- or postzygotic isolating mechanism it is.
A short hike through the Sandia Mountains from early spring to late summer will often reveal several different species of penstemon. The Rocky Mountain Penstemon blooms in the spring while the very similar inflated penstemon blooms in late summer. As a result, hybrids are rarely encountered.
Answer:
pre-zygotic isolating mechanismType: seasonal or temporalExplanation:
There are different mechanisms of reproductive isolation. These are barriers that inhibit or interrupt the genetic flux between different species. These mechanisms are about the biological characters of each species that prevent the reproduction with other species.
The reproductive isolation mechanisms might be either prezygotic or postzygotic.
Pre-copulatory or pre-zygotic: Ecological or due to habitat isolation; seasonal or temporal; Sexual or ethologic; Mechanical; Gamete incompatibility.2. Post-copulatory o post-zygotic:
Hybrid inviabilityHybrid sterilityHybrid with diminished viability and or fertilityCytoplasmatic interactions.The exposed situation is an example of prezygotic isolation due to seasonal or temporal barriers. Penstemon blooms in the spring, while the very similar inflated penstemon blooms in late summer. Probably, if they had the same reproductive season, they would produce hybrids. But as they are isolated by different reproductive seasons, they do not. As they can not even fertilize, they are considered to be prezygotic isolated species.
Which two processes increase GENETIC
VARIATION?
Answers
Answer:
Meiosis is important for creating genomic diversity in a species. It accomplishes this primarily through 2 processes: independent assortment and crossing over (recombination)
Explanation:
Crossing over takes place during prophase I of meiosis I between non identical sister chromatids where they exchange their genetic materials to form new combination of genes. Hence, increases genetic variation.
Independent assortment is where homologous chromosome are arranged randomly at the equatorial plane during metaphase I of meiosis I to produce gametes with different genetic contents. This increases the genetic diversity.
What is heat? ..........
Answers
Answer:
why type of heat? do you mean like heat from the sun, animal heat (mating), heat from like electronics? lol (ill help i just need to know which type)
Explanation:
Explain the statistical meaning of a chi-square value with an associated p-value of less than 0.05. Use a hypothesis that had a p-value <.05 from lab 7 as an example. Explain in as much detail
Answers
The statistical meaning of a chi-square value with an associated p-value of less than 0.05 is that the null hypothesis should be rejected as there is enough evidence to conclude that the variables are dependent. This implies that the variables are linked or associated in some way.
Let's use the hypothesis that had a p-value <.05 from lab 7 as an example:
Null hypothesis: There is no association between the type of workout and weight loss in individuals.
Alternative hypothesis: There is an association between the type of workout and weight loss in individuals.
Suppose, the chi-square test was performed with a significance level of 0.05 and obtained a chi-square value of 10. This would mean that there is a 95% chance that the p-value is less than 0.05, and hence, the null hypothesis should be rejected. Therefore, we can conclude that there is an association between the type of workout and weight loss in individuals.
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According to the reading, the sun is NOT a typical star.
O True
O False
Answers
Done !!!!!!!!!!
Find the reasoning sentences and evidence in the paragraph with exact quotes.
“A common type of asexual reproduction found in nature is called mitosis. mitosis requires less energy than sexual reproduction does. Mitosis can occur in seconds and does not require a mate to reproduce. Sexual reproduction requires two compatible parents. It also requires time to produce the egg and sperm cells and then for fertilization to occur. Energy is required to find a compatible mate, produce sex cells and for fertilization. Therefore Mitosis requires less energy than sexual reproduction does.”
Answers
The sentence; "Mitosis requires less energy than sexual reproduction does." is a reasoning sentence.
What is the reason?Reasoning sentence 1: "Mitosis requires less energy than sexual reproduction does."
Evidence 1: "mitosis requires less energy than se--xual reproduction does."
Reasoning sentence 2: "Mitosis can occur in seconds and does not require a mate to reproduce."
Evidence 2: "Mitosis can occur in seconds and does not require a mate to reproduce."
Reasoning sentence 3: "Se---xual reproduction requires two compatible parents. It also requires time to produce the egg and sperm cells and then for fertilization to occur."
Evidence 3: "Se---xual reproduction requires two compatible parents. It also requires time to produce the egg and sperm cells and then for fertilization to occur."
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Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in
a mRNA strand, but during translation the mRNA strand still creates the same protein. Which type of mutation is
responsible for the change in the mRNA base?
A.silent
B.missense
C.nonsense
D.insertion
Answers
Answer:
A. Silent, The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a silent mutation.
Explanation:
In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.
In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.
For the other options:
Missense: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs. Nonsense: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete. Insertion: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.Answer:
Silent
Explanation:
Edge 2021
The picture shows an organs system in the body. What do these organs do in the human body?
Answers
Answer:
Brain:
The brain integrates sensory information and directs motor responses in higher vertebrates. It is also the center of learning.
Nerve:
The nerve is a bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one part of the body to another.
Spinal cord:
The spinal cord consists of nerves that carry the incoming and outgoing messages between the brain and the rest of the body.
Explanation:
The answers are above.
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a bacteriophage uses lysogenic cycle to replicate itself. Describe the bacteriophage replication process
Answers
The 6 steps of the lysogenic cycle are described bellow, these are:
AttachmentPenetrationIntegrationReplicationLysogenic stateInductionHow does the bacteriophage replication process works?
The lysogenic cycle is one of the two replication cycles employed by bacteriophages, which are viruses that infect bacteria. In the lysogenic cycle, the bacteriophage's genetic material is integrated into the host bacterium's DNA, and the phage DNA replicates along with the bacterial DNA during cell division. The key steps of the bacteriophage replication process in the lysogenic cycle are as follows:
Attachment: The bacteriophage attaches to a specific receptor on the surface of the host bacterium, using its tail fibers or other surface proteins. This attachment is essential for the phage to infect the bacterium.
Penetration: The phage injects its genetic material, either DNA or RNA, into the host bacterium through the cell wall and membrane using its tail or other specialized structures. The phage genetic material takes over the host bacterium's cellular machinery.
Integration: The phage genetic material becomes integrated into the host bacterium's DNA. It is often inserted into a specific site in the bacterial genome, and this integrated phage DNA is known as a prophage.
Replication: The integrated phage DNA is replicated along with the host bacterium's DNA during bacterial cell division. As the host bacterium multiplies and divides, the phage DNA is also replicated, and the progeny cells carry the phage DNA.
Lysogenic state: The host bacterium continues to grow and divide, and the phage DNA remains integrated in its genome. The bacterium, now called a lysogen, can pass on the integrated phage DNA to its progeny cells, allowing the phage DNA to be replicated in subsequent generations without causing immediate harm to the host bacterium.
Induction: Under certain conditions, such as environmental stress or changes in the host bacterium's physiology, the prophage may be induced to enter the lytic cycle. This triggers the production of new phage particles, and the host bacterium is ultimately lysed (destroyed) to release the newly formed phages.
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