This protective covering on the axon is formed by a type of neurglia called schwann cells.

Answers

Answer 1
Schwann cells produce the protective covering around certain nerve cells called myelin. 

It's most commonly found covering motor neurons in vertebrate animals. Myelin-covered neurons have a faster conduction velocity.


Related Questions

Which one has a cell membrane prokaryotic or eukaryotic cells?

Answers

A prokaryotic cell contains no membrane-bounded organelles. 

With this information, we can conclude that it is the eukaryotic cells that has genetic material surrounded by a membrane.

Both prokaryotic and eukaryotic cells have a cell membrane. The cell membrane acts as a barrier that separates the cell's interior from its environment. It is a crucial component in maintaining the cell's integrity and function.

Both prokaryotic and eukaryotic cells have a cell membrane. The cell membrane, also known as the plasma membrane, is a common component in all types of cells. It acts as an outer covering that separates the cell's interior from its surrounding environment.

Prokaryotic cells, which include bacteria and archaea, and eukaryotic cells, which include animals, plants, fungi, and protists, both have cell membranes. The cell membrane is essential for maintaining the cell's integrity and regulating what enters and exits the cell.

You could identify a sedimentary rock as a conglomerate because of which of the following?
A. the clastic nature of the rock
B. the amount of organic material in it
C. the calcium sulfate content of the rock
D. the small pebbles and rocks embedded in it

Answers

d. The small pebbles and rocks embedded in it.
Small pebbles and rocks buried in sedimentary rocks is what makes the rocks identifiable as a conglomerate. 

I hope this helps! Have a nice day.

Cryogens and dry ice produce an effect on the skin similar to a rash true or false

Answers

Cryogens and dry ice are cryogenic substances that cause skin related problems if not handled carefully. These are extremely dangerous to touch and cause boiling of skin. The skin is severely damages if touched with naked hands.
Care should be taken while handling cryogens Use of specific gloves and personal protective equipments to cover yourself.

Answer: FALSE

If you have just eaten, your body secretes ______ to uptake glucose; if you have not eaten all day, your body secretes ______ to promote glycogen breakdown.

Answers

If you have just eaten, your body will secrete insulin. Insulin is the hormone that allows glucose to enter cells. That way they will have the proper energy for their normal functions.
If you have not eaten for a while, your body is running out of glucose to feed the cells so it needs to secrete another hormone called glucagon. This hormone is the complete opposite of insulin because it breaks down glycogen, proteins and fats into glucose.

What name is given to the process when a cell divides to produce Gametes??

Answers

not sure what your talking about
Meiosis is the process of gamete production

In a healthy human, the typical life span of a red blood cell is

Answers

Human red blood cells are formed mainly in the bone marrow and are believed to have an average life span of approximately 120 days.

In a healthy human, the typical life span of a red blood cell is of approximately 120 days or 4 months.

What are red blood cells?

Red blood cells are also referred to as red cells, red blood corpuscles, or erythrocytes. These are the most common type of blood cells in the blood and the vertebrate's principal means of delivering oxygen and other nutrients to the body tissues via blood flow through the circulatory system in the body.

The normal life span of the RBC in healthy adults is approximately 110-120 days. Hemolysis can be defined as the shortening in the survival of circulating RBCs in the blood to a value of less than 100 days. RBCs die and enters the spleen which is known as the graveyard of RBCs in the body.

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What factor most influences the power pf a stream to erode and transport material?

Answers

The velocity influences most the power pf a stream to erode and transport material. The velocity is the rate of change of the position of an object  with respect to a frame of reference,
In order for a stream to pick up large particles, it needs to change its referent position and to flow quickly.

How many times would you expect proline to appear in this peptide if it were made up of a completely random assortment of the 20 most common amino acids?

Answers

Out of the 20 most common amino acids, proline appears with a frequency of about 5%.
So, if a peptide were to be made up of a completely random assortment of the 20 most common amino acids, proline would appear about 5 times in 100 amino acids.

During michelle's __________ month of pregnancy, the eyes, ears, and nose form.

Answers

During Michelle's 6th month of pregnancy, the eyes, ears, and nose form.
During Michelle's 2nd month of pregnancy. 

Two common metamorphic rocks that typically lack foliation are ________ and ________.

Answers

The two are Phyllite and schist

Two common metamorphic rocks that typically lack foliation are Phyllite and schist.

What are metamorphic rocks?

Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock is subjected to temperatures greater than 150 to 200 °C and, often, elevated pressure of 100 megapascals or more, causing profound physical or chemical changes.

Moreover, metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Hence, metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock.

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What is the process of osmosis?

Answers

osmosis is the net movement of water from a region of higher water potential to a region of lower water potential through a partially permeable membrane

Osmosis is a special case of diffusion. Water, like other substances, moves from an area of higher concentration to one of lower concentration. ... In this example, the solute cannot diffuse through the membrane, but the water can. Water has a concentration gradient in this system.

1. In which oceanic zone would you find the highest water pressure?
a) Abyssopelagic
b) Bathypelagic
c) Epipelagic
d) Mesopelagic

Answers

Mesopelagic.

In which oceanic zone would you find the highest water pressure?

Abyssopelagic

Bathypelagic

Epipelagic

Mesopelagic

Mesopelagic

Answer:

a) Abyssopelagic

A patient has been diagnosed with osteoporosis and asks the nurse practitioner, "what is osteoporosis?" the nurse practitioner knows that osteoporosis can be defined as:

Answers

Osteoporosis, which literally means porous bone, is a disease in which the density and quality of bone are reduced. As bones become more porous and fragile, the risk of fracture is greatly increased. The loss of bone occurs silently and progressively.
Final answer:

Osteoporosis is a condition characterized by the loss of bone density and deterioration of bone tissue. It increases the risk of fractures and weakens bones. Management may involve lifestyle changes and medication.

Explanation:

Osteoporosis is a medical condition characterized by the loss of bone density and the deterioration of bone tissue. It is most commonly associated with aging, particularly in postmenopausal women. The condition can increase the risk of fractures and result in weakened bones.

Osteoporosis occurs when the body loses more bone mass than it can replace. This leads to a decrease in bone density, making the bones more susceptible to fractures. Factors such as hormonal imbalances, lack of physical activity, and an inadequate intake of calcium and vitamin D can contribute to the development of osteoporosis.

To manage and prevent osteoporosis, healthcare professionals may recommend lifestyle changes, including regular exercise, a healthy diet, and the use of medications such as bisphosphonates or hormone therapy to slow down bone loss or promote bone formation.

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I need help with these questions. I've taken this test twice and so I'm leaving out the answers I already chose. These are the ones I've missed and don't know.

5. Which statement is true of both active transport and facilitated diffusion?
c. Both only occur in one direction
d. Both involve proteins in the cell membrane

7. Osmosis involves which of the following processes?
a. movement of water across a cell membrane
d. moment of water up a concentration gradient

10. The inner membrane of mitochondria consists of many folds. What is the purpose of this membrane?
a. Increase the surface area to allow more space for ATP synthesis
d. Decrease the surface area so substances can't diffuse in

These three I just don't remember what my answer was since it was on Friday I think.

11. Which of the following is true of eukaryotes but not of prokaryotes?
(a. They do not have membrane-bound organelles)
b. They are always single-celled
d. They must contain a nucleus

12. Semipermeable cell membranes are made of phospholipids that form a bilayer. What major benefit does this arrangement of the membrane provide to the cell?
a. The cell is able to easily change size and shape
b. Both surfaces of the membrane are nonnpermeable
(c. Both surfaces of the membrane can interact with water and other molecules)

13. When a Pacific sea horse's body loses water to its environment, which process is responsible?
a. active transport
b. osmosis
(c. endocytosis)

Thanks in advance

Answers

5. Both only occur in one direction
7. Movement of water across a cell membrane
10. Increase the surface area to allow more space for ATP synthesis
11. They must contain a nucleus
12. Both surfaces of the membrane can interact with water and other molecules
13. Osmosis 

• Active transport and facilitated diffusion both involve cell membrane protein.

• Osmosis involves the movement of water toward the higher concentration

• Mitochondria inner membrane consist of many folds to increase the surface to allow more space for ATP synthesis.

Prokaryotes do not contain a nucleus

• Semipermeable cell membranes are made of phospholipids that form a bilayer through this cell have greater level of structural support

• Pacific sea horse s body loses water to its environment through osmosis.

Further Explanation:

The cell membrane has an ability to control the flux of ions, amino acid, and gases, through a lipid bilayer.

The lipid bilayer is made up of phospholipids and these membranes have hydrophobic interior, a layer is selectively permeable and allow only small, non-polar molecule. large and polar molecule like glucose cant cross plasma membrane easily they require energy and carrier protein to transport.

Types of transport:

• Passive transport

• Active transport

In passive transport, movement of ions or small molecule according to their concentration gradient from higher concentration to lower concentration.

But large polar molecule or charged molecule example glucose,Na+ require carrier protein to transport charged molecule across the membrane, do not require ATP or energy to transport.

Osmosis is a process by which diffusion of water takes place through cell membrane. To maintain the structure and function of cell it is important to maintain equal concentration of solute across the cell membrane.

These are the type of solutions

• Isotonic solution:The solution in which the concentration of solute is equal to the concentration inside the cell

• Hypertonic soluuution: The solution in which the concentration of solute is higher than the concentration inside the cell

• Hypotonic solution: The solution in which the concentrationnn of solute is lower  than the concentration inside the cell

In active transport, they require ATP as well as carrier protein to transport molecule across the plasma membrane, an example of active transport is a sodium-potassium pump.

Mitochondria is present mostly in eukaryotes and not present in single celled organelle like RBC which lack nucleus.

Function of mitochondria

• Power house of cell

• TCA cycle occur in this

• Regulates membrane potential

Mitochondria is made up of two membrane outer layer and inner layer, space between the two membranes called intermembrane space,space enclosed by inner membrane is called matrix, inner membrane consists many folds to expand the surface area for ATP synthesis.

Learn More:

1. Learn more about cell membrane https://brainly.com/question/5923583

2. Learn more about cell cycle https://brainly.com/question/1600165

3. Learn more about diffusion https://brainly.com/question/1386629

Answer: Details:

Grade: High School

Subject: Biology

Chapter: Cell membrane

Keywords:

Active transport, passive transport, facilitated transport, diffusion, mitochondria, cell membrane, osmosis, hypertonic solution,hypotonic solution,isotonic solution, osmosis, molecule, glucose.

Randy is a nursing student. he has been asked to intravenously inject his patient with 10ml of an isotonic preparation. mistakenly, he injects his patient with 10ml of pure water. what is likely to happen to the red blood cells near the site of injection

Answers

Injecting water with dilute the plasma content in that area. It can also cause red blood cell more water than what their membranes can contain, causing them to burst. However, a small amount of water can't do any harm. Only a large amount of water can actually cause harm because water kills the red blood cell that carries oxygen through the body.

The injection of the water would result in the dilution of the plasma. The dilution of the blood plasma would make it hypotonic as compared to the red blood cells present in the plasma.

In the hypotonic plasma, the red blood blood cell would cell. The red blood cell would allow the water molecules to come inside and as a result of inflow of the water, the cell will swell and probably burst. So, the red blood cells at the site of injection will swell and burst due to the injection of water.

Do you think scientists should spend time looking for Earth-like planets before we have the technology to visit them? Why or why not?

Answers

yes , it is a smart idea but, it would be kinda hard to learn about a planet if we dont send technology to explore .

Yes, because they know more information about the plants before they send people to go the planets and the be places that aren’t safe for people to go to. Hope this helps

How are nutrients transferred to the fetus from the maternal blood?

Answers

Nutrients are transferred to the fetus from maternal blood via the placenta. The placenta is a structure that develops during pregnancy that is attached to the uterine wall and to the fetus via another structure known as the umbilical chord. Both wastes and nutrients are transferred via the process of diffusion from blood vessels from the mother and the fetus.

Explain which aquatic environment are more likely to have winter ice

Answers

The question is asking to explain the aquatic environments are more likely to have winter ice and base on my research, the answer would be the water in fresh water ecosystems like lake, ponds, and rivers are more likely to freeze over in winter because the salt dissolved in marine environments prevents the water from freezing.

The water in freshwater ecosystems like lakes, ponds, creeks, and rivers are more likely to freeze over in winter because it doesn't contain salt. The salt dissolved in marine environments prevents the water from freezing.

Which of the following is NOT part of aerobic cellular respiration?
A) electron transport
B) glycolysis
C) Calvin Cycle
D) Krebs Cycle

Answers

A) electron transport Is not apart of aerobic cellular respiration.
the dud who answered this first is an idiot. the answer that he gave was not correct

What is the difference between integral and peripheral membrane proteins?

Answers

Peripheral membrane proteins are indirectly interactive to the cell membrane, while the integral proteins interact with the peripheral proteins

Explain why scientists believe the Abert’s and Kaibab squirrels are examples of speciation.

Answers

Abert's squirrels (Sciurus aberti) are a North American species, found across a range of locations. Kaibab squirrels (Sciurus aberti kaibabensis) are a subspecies of Abert's squirrels, found only in one area in the United States. As these two types of squirrels have been isolated from one another for 10,000 years, they've evolved some distinct and separate characteristics.

The Abert’s squirrel is found on the south rim of the grand canyon and surrounding states.The Kaibab squirrel can only be found at the north rim of the canyon.Scientists believe they were separated by plateau erosion that separated the forests of the Grand Canyon, isolating the Kaibab population of squirrels.

Gorging oneself after a period of starvation and then purging the body through induced vomiting and further fasting is a major sign of:

Answers

The correct answer is bulimia.
Bulimia is an eating disorder where a person eats as much food as they can, only to throw up everything they have eaten - they induce themselves to vomit to get rid of all the food they took. 
Anorexia doesn't necessarily involve vomiting. Hypertension is high blood pressure. Obesity refers to extremely overweight people.

What single feature is primarily responsible from the variation of climates in different parts of the world?

Answers

I think it is the angle of incoming sunlight. 
Maybe the sun? I think the sun because depending on where you are in the world the sun can change the climate from hot to cold

The __________ valve regulates the flow of blood between the right ventricle and the vessels leading to the lungs.

Answers

The right atrioventricular valve (tricuspid) regulates the opening between the _________ and the _________. The __________ valve regulates the flow of blood between the right ventricle and the vessels leading to the lungs. Mitral valveprolapse causes blood to leak back into the __________ when the ventricles contract.

The tricuspid valve regulates blood flow between the right atrium and right ventricle.

What is the function of tricuspid valve?

The tricuspid valves job is to allow blood flowing into the heart from the body to flow to the right ventricle where it's pumped to the lungs for oxygen.

What does the tricuspid valve do?

The tricuspid valve is on the right side of the heart. It separates the upper and lower chambers, also known as the right atrium and ventricle. The valve allows deoxygenated blood to flow through both of the chambers.

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Which situation occurs when drugs cross the placenta during pregnancy?

Answers

Use of drugs during pregnancy should be made after a medical advice only. Some drugs are good to be taken during pregnancy while some should be strictly avoided. Thus, it is always advisable to take an advice from the doctor before consuming any drug.

Use of drug during pregnancy is avoided because drugs cross the placenta and reach the fetus. This can lead to serious implications such as
1. abnormal development of the fetus
2. underdeveloped or underweight babies
3. babies with drug dependency

Babies may be born with a drug dependency.



Scientific models must be able to generate ___________.


Answers

phenomena if im not mistaking
It might be theories but i'm not sure 

A nurse is caring for a client experiencing hyponatremia who was admitted to the medical-surgical unit with fluid-volume overload. for which clinical manifestations of this electrolyte imbalance does the nurse monitor this client? select all that apply.

Answers

Hyponatremia, also known as low sodium, primarily manifests as neurological symptoms. These include headache, confusion, seizures, cerebral edema, and coma. Other clinical manifestations include nausea and vomiting, lethargy, irritability, and muscle spasms or weakness.

how does the way animal cells use their vacuoles compare to the way plant cells use theirs?

a) both plant and animal cells use some of their vacuoles to store food

b) both plant and animal cells rely on their vacuoles to help the cells maintain their shape

c) all animals cells need to have vacuoles, but one plant cells in the roots need to have them

d) animal cells use their vacuoles constantly, but plant cells only need theirs during drought

Answers

I think it is A. both plant and animal cells use some of their vacuoles to store food. 

Answer:

The most suitable answer is option A.

Explanation:

Vacuoles are found in both plant cells and animal cells. Vacuoles are larger in plant cells while animal cells have smaller but more in the numbers. Vacuoles act as a storehouse for food or of nutrients a cell needs to survive.

They also store waste products some times so the rest of the cell is protected from contamination. However, in plants, they provide support to the cell and help them to maintain shape. It increases in size with age.

Thus, the correct answer is option A.

When assisting a child with ventilation:
a.do not over-inflate his lungs
b.pinch his nose closed
c.allow the child to exhale on his own
d.all of the above?

Answers

Hello There!

Based on my First Aid classes the answer is D. All of the above.
If someone turns unconscious, you'd have to perform CPR and call an emergency service as soon as possible.

Hope This Helps You!
Good Luck :) 

- Hannah ❤

Photosynthesis uses sunlight to convert water and carbon dioxide into what two things

Answers

Photosynthesis utilizes sunlight to convert water and carbon dioxide into food (glucose) and oxygen.

What is Photosynthesis?

Photosynthesis may be defined as a process through which green plants and most photosynthetic algae synthesize their own food with the help of carbon dioxide and water in the presence of sunlight.

The complete reaction of photosynthesis is as follows:

[tex]6CO_2+12H_20[/tex] → [tex]C_6H_1_2O_6+ 6O_2+ 6H_2O[/tex].

During the process, the inorganic carbon of carbon dioxide is converted into the organic carbon of carbohydrates.

The process of photosynthesis involves the following:

The absorption of light energy by the green pigment is known as chlorophyll.The conversion of captured light energy into chemical energy along with the splitting of water molecules into hydrogen and oxygen.The reduction of carbon dioxide into carbohydrates (glucose).

Therefore, the process of photosynthesis utilizes sunlight to convert water and carbon dioxide into food (glucose) and oxygen.

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