Explain why most nerve cells have a myelin sheath (2 marks)​

Answers

Answer 1

Answer:

This allows electrical impulses to travel efficiently and quickly along the cells.


Related Questions

Shown below are 4 stages (A,B,C,D) (not in sequence) of a certain kind of cell division.

Answers

The diagram below shows a cell undergoing mitosis (cell division). The correct order of the stages is B, C, D and A.

Mitosis is a type of cell division in which a parental cell divides to produce two genetically identical daughter cells.

In this case, an animal cell is undergone mitosis because the cell exhibits centrioles (only found in animal cells) and lacks cell walls (only present in plant cells).

The stages of mitosis include prophase, prometaphase, metaphase, anaphase, and telophase.

Learn more about mitosis here:

https://brainly.com/question/13536882

plants undergo both photosynthesis and respiration. which statement correctly compares photosynthesis with respiration?

Answers

Answer:

Oxygen and carbon dioxide

Explanation:

Identify what phase of the menstrual cycle is described by each of the statements below.

21.After ovulation occurs, the follicle develops into a hormone producing structure called the corpus luteum.
______________

22. Fertilization is possible on this phase.
______________

23. In this phase, the lining of the uterus starts to grow, or proliferate due to the hormone estrogen.
______________

24. In this stage, the thick lining of the uterus will slough off and will be eliminated from the body.
______________

25. In the process, another hormone causes the follicle to rupture and release an egg (also called as oocyte).
______________​

Answers

Answer:

21. Follicular phase

22. Ovulation phase

23. Follicular phase

24. Menstrual phase

25. Follicular phase

Explanation:

I think it’s self explanatory but if you have more questions just ask in the comments

What can you infer is the reason fruit flies are the most commonly used organism for this type of investigation

Answers

In the case of genetic investigation, scientists used fruit flies as their model organism since they share 75% of the genes that cause disease with humans.  Fruit flies are also great to work in a research setting because they are relatively easy to take care of, especially compared to larger and more expensive organisms like rats or fish.Answer:

Explanation:

Hope this helps!!

Bob has brown hair and Sally has blonde hair. If brown hair is dominant and blonde hair is recessive, is it possible for Bob and Sally to have a blonde-haired child? Use the GENOTYPE of each parent to EXPLAIN your answer.

Answers

Answer:

Yes

Explanation:

Bob (BB) Sally (bb) = spawn (Bb) Brown is dom resulting in a brown hair Spawn.

what is the answers Which sampling method is most suitable in calculating the population of mushroom on a field?
Pitfall trap
Pooter
quadrat
net​

Answers

Given what we know, the sampling method most suitable in calculating the population of mushrooms on a field is the quadrat.

What is the quadrat?A quadrat is a method used to directly count the number of an organism in a specific portion of a region. It is often used to get an estimated value as to the population density of the organism in the region.

Therefore, given the task at hand as well as the use of a quadrat, we can confirm that the most suitable method in calculating the population of mushrooms on a field is the quadrat.

To learn more about quadrat visit:

https://brainly.com/question/7869679?referrer=searchResults

what are the five functions of the skeletal system?

Answers

Explanation:

protection of internal organsbody support blood cell formation endocrine regulationstorage of mineral and fat

Which figure is the percent of energy at which one trophic level generally flows to the next level?
1)10%
2)35%
3)50%
4)100%

Answers

Answer:

Which figure is the percent of energy at which one trophic level generally flows to the next level 10

Passive transport move molecules without

Answers

Answer:

Passive transport moves molecules without energy

Explanation: hope this helps plz make brainlist

Climate change caused by natural disasters cannot have a negative impact on ecosystems. Please select the best answer from the choices provided T F

Answers

Its false because climate change can still effect us, even if it’s natural.

Answer:

FFFFFFFFFFFFFFFFF

Explanation:

trust i got it right on the test have a wonderful day :)))

MITOSIS
Complete the sentences below by circling or filling in the correct words.
Mitosis is cell division of (germ, somatic) cells. The purpose of mitosis is to create new cells for
and
Mitosis produces four (different, identical) cells that are (diploid,
haploid)

Answers

Answer:

Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division.

Explanation:

Involves one cell division?

Results in two daughter cells

Results in diploid? daughter cells? (chromosome? number remains the same as parent cell)

Daughter cells are genetically identical

Occurs in all organisms except viruses

Creates all body cells (somatic?) apart from the germ cells? (eggs and sperm)

Prophase is much shorter

No recombination/crossing over occurs in prophase.

 

In metaphase individual chromosomes (pairs of chromatids) line up along the equator.

During anaphase the sister chromatids are separated to opposite poles.

what compares nucleic acids and carbohydrates

Answers

Answer:

D. They both contain carbon, but only nucleic acids contain phosphorous.

Explanation:

which type of connective tissue has a mineralized different matrix?

Answers

Answer:

Bone

Explanation:

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Answers

Answer:

The Cornea

is the answer

The diagram below represents a plant cell in tap water as seen with a compound light microscope.
Which diagram best represents the appearance of the cell after it has been placed in a 15% solution for two
minutes?
SOS
(1)
(2)
(3)
(4)

Answers

Answer:

(3)

Explanation:

I believe 3 would be the answer here because when interacting with a salt solution, plant cells will look like that. Hope this helped!

Diagram 3 of the cell will represents cell's appearance after being kept in 15% salt solution.

This will happen because of exosmosis in which the water will move out of the cell causing to to get shrink called plasmolysis

What is osmosis?

It is the process of movement of solvents through a semi- permeable membrane from region of lower solute concentration to higher solute concentration.

There are three types of osmosis:-

Isotonic:- The solutions bring compared have equal concentration of solutesHypotonic:- The solution with lower concentration of solutesHypertonic:- The solution with higher concentration of solutes

To know more about osmosis here

https://brainly.com/question/1799974

#SPJ2

the general function of an enzyme in the body is to

Answers

Answer: Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.

4
1
Which of the following lines does not pass
through the north and south poles?
A prime meridian
B equator
C 90-degrees W longitude
D International Date Line

Answers

The Equator line does not pass through the north and south poles. This line divides the Earth's planet into two hemispheres.

The Equator can be defined as an invisible line located at the center of the Earth (0 degrees latitude).

This invisible line (Equator) divides the Earth into two hemispheres: the northern hemisphere and the southern hemisphere.

The Equator is a circle of latitude, and the distance of this imaginary line is approximately 40,000 km in circumference.

Learn more about the Equator line in:

https://brainly.com/question/16876469

A mineral is defined as a natural substance that is neither animal nor plant, has a
A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.
B. solid substance or element that is essential to human nutrition.
C. naturally occurring, crystalline, inorganic solid that contains only one element.
D. naturally occurring inorganic solid consisting of chemical elements in specific proportions, whose atoms are arranged in a repeated internal pattern.

Answers

Answer:

the answer is A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.

Explanation:

the lysosomal enzymes show optimal activity in ------------ph.

Answers

the lysosomal enzymes show optimal activity in White blood cells

Which is the most likely explanation for the change?​

Answers

Answer:

a beetle population moved to a greener habitat.....

How does your body respond to an increase in the waste products of energy production

Answers

Answer:

body improves energy to make our body is healthy to have related fitness it's actually improve muscles , immunity , physical related fitness to being strong and proper food and exercise every day . I increased more fats and sugary food

Rewrite the following equation in slope-intercept for. 6x - 4y = -5

Answers

Answer:

y = 3/2x + 5/4

Explanation:

Y = mx + b. DONE.

PLEASE HELP ILL GIVE BRAINLIEST

Review

1. Describe the structures of the chloroplast where photosynthesis takes place.

2. What would happen if the stomata of a plant leaf were glued shut? Would that plant
be able to perform photosynthesis? Why or why not?

3. What are the reactants needed to perform photosynthesis? The products?

4. What happens to the products of photosynthesis?

Answers

Answer:

In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll. Chlorophyll absorbs certain portions of the visible spectrum and captures energy from sunlight.

The plant leaf would not be able to perform photosynthesis. The leaf needs to have its chloroplasts facing the sun, so that they can absorb the sunlight to perform photosynthesis.

During photosynthesis, light energy converts carbon dioxide and water (the reactants) into glucose and oxygen (the products).

During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6). The oxygen will leave the plant through the stomata and enter Earth's atmosphere.Explanation:

Which best describes stellar equilibrium?

Answers

C) The core contains equal amounts of hydrogen and helium

1
Which of the following is BENEFIT of using natural fertilizer?
O its cost effective (cheap)
O you know exactly what nutrients/minerals are in it
it adds to the soil and makes it better long term
O it could lead to e. coli outbreaks

Answers

The effect of natural fertilization is adds to the soil and make it better long term

The lake ecosystem where this food chain takes place is hosting a new fishing tournament. It is expected to be the largest fishing tournament in the state. The goal is to catch as many bass as you can over a 3-day period. What would be the effect on the food chain due to the fishing tournament

Answers

Answer:

The sunfish population should grow

Explanation:

Cuz me smort

________________ translate the mRNA message into proteins, which may go into the cytoplasm, or enter the ER to be modified.
help!!!

Answers

Answer:

ribosomes

Explanation:

ribosomes translate RNA into protein

What is the term used to describe when a molecule moves into the cell through a
transport protein but does not require energy to do so?
a) facilitated diffusion
b) osmosis
c) active transport
d) filtration

What’s the correct answer

Answers

A) facilitated diffusion :)

a scientific study shows that for every 1 hour of studying that a student does their grade on the test improves by 20% what is the independent variable

Answers

The hours of studying is the independent variable. Independent variables are “the things I change” in the experiment

What 3 factors influence the rate of photosynthesis?

Answers

Light exposure, carbon dioxide levels and water levels
Other Questions
A shipping container will be used to transport several 60-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 26000 kilograms. Other shipments weighing 13200 kilograms have already been loaded into the container. What is the greatest number of 60-kilogram crates that can be loaded into the shipping container? 10. Given m and b, write the equation of the line: m=-4; b=2 the college admissions process can create anxiety. in an attempt to make it less stressful, please tell us an interesting or amusing story about yourself from your high school years that you have not already shared in your application. heeeeeeeeeeeeeeeeeeeelp me plssssssssssss question 19 of the attachment below A reading researcher does what Helpppo for an exammmm In which sentence is the adverb clausepunctuated correctly?A. After he played and won the soccer game, he went to eatdinner.B. He went to eat dinner, after he played and won thesoccer game.C. After he played and won the soccer game he went to eatdinner. Help me please I dont know what to don Identify the diameter of the circle What an object conveys about the important events, advancements, and people of a specific time period is calledtheO cultural significance.O historical anecdote.O historical significance.O cultural importance. PLEASE HELP QUESTION IN PICTURE Author is to book as architect is to A) buildingB) landscapeC) plantingD) manfacturing Any ideas for this? Select the correct answer from each drop-down menu.what is 1 plus 1 The book that i read was entertaining passive voice. Helpppppppp me .. _____________ is a standard communications protocol used to connect computer networks around the world. A. The Internet c. Video b. Television d. The World Wide Web Please select the best answer from the choices provided A B C D. The diagram shows the distance between my home, H. and two towns, A and B.It also shows information about journey times.What is the average speed of the journey from my home to town A? What changes occurred after the Neolithic Revolution?