What is the layer of myelin that surrounds an axon called?

Group of answer choices

1. Node of Ranvier
2. Perichondrium
3. Perimysium
4. Myelin sheath
5. Periosteum

Answers

Answer 1
The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier. Since fat serves as a good insulator, the myelin sheaths speed the rate of transmission of an electrical impulse along the axon.

I think the answer is Nodes of Ranvier but I’m not sure. I hope this helped <3

Related Questions

True or false: The offspring of animals who reproduce asexually can be considered identical clones of their parent.

Answers

Answer:

I'm not sure but I think it's

Explanation:

FALSE

I believe the answer is False,but I’m not completely sure!

which fungi has single cell​

Answers

Yeasts are known as single celled fungi. Around 1,500 species of fungi are recognised as yeasts.

The fascia found on the surface of the muscle is called the superficial fascia.
True
False

Answers

I think the answer is true

What effect do you changing the number of enzymes will have on the amount of product made for every second

Answers

Answer:

Enzymes increase the reaction rate, but as the enzymes become saturated the reaction rate levels.

The part of the cell that is like your brain and gives instructions to the cell is
A.nucleus
B.protoplasm
C.membrane
D.fat cells
Help please

Answers

I think is nucleus

I hope it helps

Which products do not have scientific studies supporting their claims to be beneficial when used?

A. Cofactors and coenzymes to support enzyme function
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function

Answers

The answer is A I think

Which statement best describes the difference between the crust and the lithosphere?
A. The lithosphere contains both the crust and the upper most rigid layer of the mantle
B. The lithosphere contains both the crust and the inner core
C. The lithosphere contains both the core and the mantle
D. The lithosphere contains both the crust and the ocean

Answers

Answer:

A. The lithosphere contains both the crust and the uppermost rigid layer of the mantle

Explanation:

The statement that describes the difference between the crust and lithosphere is that the lithosphere contains both the crust and the uppermost rigid layer of the mantle.

The earth is divided primarily into 3 concentric layers; crust, core, and mantle. The crust is the outermost layer of the earth. It is a very thin layer. The lithosphere, on the other hand, is the crust plus the upper rigid layer of the mantle. This is the main difference between the crust and lithosphere.

which of the following is considered a condition of the nervous system and not a disease of the nervous system?
celebral palsy
epilepsy
multiple sclerosis
parkinson's ​

Answers

im not sure since it’s kind of hard to identify which one is not a disease they’re all related to the nervous system but i narrowed it down to either the top two, i hope it helps somehow :)

Golden rice is a genetically modified organism that has high vitamin A content. What is golden rice
attempting to do?
A. grow rice in salty soil
B. create better looking rice
c.grow rice under drought conditions
D.create rice that contains more nutrients

Answers

Answer:

Golden rice is a genetically modified, biofortified crop. Golden rice is genetically modified in order to produce beta carotene, which is not normally produced in rice. Beta carotene is convereted into Vitamin A when metabolized by the human body. We need Vitamin A for healthier skin, immune systems, and vision.

Explanation:

Golden rice is a genetically modified, biofortified crop. Biofortification increases the nutritional value in crops. Golden rice is genetically modified in order to produce beta carotene, which is not normally produced in rice. Beta carotene is convereted into Vitamin A when metabolized by the human body.

With increasing maternal age, the chances of observing trisomies increase significantly. Increasing paternal age is associated with de novo point mutations. Why?

Answers

Answer:

Mother: higher risk of an improper chromosome division

Father: higher risk to suffer point mutations in sperm cells

Explanation:

A trisomy is an alteration in the chromosome number (i.e., an aneuploidy), and occurs when a cell receives three chromosomes instead of two. The risk of aneuploidies -including trisomies- increases with the mother's age due to the fact that older eggs have a higher chance of dividing unequally, thereby leading to an imbalanced number of chromosomes between daughter cells. Moreover, a point mutation is defined as a genetic modification where a single nucleotide is changed in the DNA sequence. It has been shown that point mutations in children are determined to a large extent by the father’s age, which are due to mutations in germline cells (i.e., sperm cells) that were passed to the progeny. A child born from a father who is 20 years old exhibits on average 40 point mutations, whereas a child born from a father who is 40 years old has typically twice the point mutations on its genome.

If the pride is taken over by a new individual what happens to the females? Males? Cubs?

Answers

Answer:  When a new male coalition first takes over a pride, the cubs represent a major impediment to their reproduction. Mothers of surviving cubs will not mate again until their offspring are at least 18 months of age but will mate within days if their cubs are lost.

Explanation:

A patient comes into the hospital complaining of having symptoms that looks like to be a streptococcal infection. When treated at the hospital it was determined the patient has streptococcus. However, after 3 days of being in the hospital the patient is now showing symptoms of having pneumonia. How is this possible? How did this pattern of infection take place? Talk about the immune system and the reasoning behind these diseases.

Answers

Answer:

Hope it helps...

Explanation:

Pneumococcal disease is caused by bacteria called Streptococcus pneumoniae (pneumococcus). People with pneumococcal disease can spread the bacteria to others when they cough or sneeze. Symptoms of pneumococcal infection depend on the part of the body affected.

Why don’t you get the flu when you get a flu shot?
A. You wash your hands to keep from getting the flu
B. Your body makes antibodies to keep flu away
C. Your body makes a pathogen to fight the flu
D. Your body makes a natural immunity for the flu

Answers

B is the correct answer

What is the cell cycle?

Lesson Question
Help please !!!

Answers

A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division. The resulting cells, known as daughter cells, each enter their own interphase and begin a new round of the cell cycle.

Dichotomous key example

Answers

Hi :)

There are two types of dichotomous keys, one is a spider key


and the other asks a series of questions and as you answer them, depending on the characteristics of your species, you’ll decide what step to move to

Hope this helps :)

The two parts of cell theory are 1. All living things are made of cells and 2. Cells cannot reproduce? (true or false). if true why?

Answers

Answer:

1. true

2.false

Explanation:

1.because of the gravity of the earth

Bill once had a blue car that was in the shop more than it was on the road. Since
then he will not even consider owning a blue car. Bill's aversion to blue cars is
an example of:

Answers

Answer:

artificial made

Explanation:

because it is greated by man not God

A certain species of lizard comes in three colors: cream, golden, and brown. All lizards are a single solid color (ie, none ever have spots or stripes) You carry out matings between these lizards, and collect the following data:

• Cream and brown lizards can be true-breeding, but golden lizards never breed true.
• Matings between cream and golden lizards always yield cream and golden offspring in a 1:1 ratio.
• Matings between brown and golden lizards always yields brown and golden offspring in a 1:1 ratio.
• Mating golden lizards with other golden lizards always yields brown lizards, golden lizards, and cream lizards in a ratio of 1:2:1, respectively.

Required:
Assign allele symbols to all alleles of the lizard color gene, and indicate which genotypes result in which phenotypes.

Answers

Answer:

Cream and brown lizards can be true-breeding, but golden lizards never breed true.

Explanation:

LIQUID DENSITY COLUMN
-Olive Oil
-Vegetable Oil
please help me with this question thanks:)

Answers

Answer: Vegetable oil

Vegetable oil is the ans

Choose one hypothesis to make a prediction

Answers

Answer: The tomato plants will grow faster and taller in soil with compost over a 30-day period

Explanation: SAMPLE ANSWER FOR PLATO

What adaptations allow conifers to live in dry
habitats?

Answers

Answer:

Explanation: Long, thin needles to reduce the surface area of their leaves, the leaves' waxy outer covering, and leaf openings in cavities on the surface of the leaves to reduce water loss by evaporation.

Long, thin needles to reduce the surface area of their leaves, the leaves' waxy outer covering, and leaf openings in cavities on the surface of the leaves to reduce water loss by evaporation.

how do mutations affect our communications?​

Answers

Explanation:

When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. In some cases, gene mutations are so severe that they prevent an embryo from surviving until birth.Over time, a mutation might take place in one of the descendant cells, causing increased activity of a positive cell cycle regulator. The mutation might not cause cancer by itself either, but the offspring of this cell would divide even faster, creating a larger pool of cells in which a third mutation could take place.

Based on the data in the graph, how are cyanobacteria responsible for the rise in atmospheric oxygen? State your claim, then make sure to use evidence from biological processes and data from the graph to support your claim.

Answers

Answer:

They perform photosynthesis, releasing oxygen into the atmosphere as a by-product.

Explanation:

Around the time that cyanobacteria appear around 3.2 billion years ago, the oxygen levels rise sharply.

Cyanobacteria are photosynthetic organisms. They possess the photosynthetic pigment chlorophyll, meaning they can trap light energy and use it to power chemical reactions to synthesise glucose. They convert carbon dioxide and water into sugar, releasing oxygen into the atmosphere as a byproduct. This causes oxygen levels to rise.

Answer:

Cyanobacteria are microbes that live primarily in seawater. They are believed to have been the first organisms on Earth to perform oxygenic photosynthesis. In this process, they produce organic carbon, the building blocks of life's molecules, and release oxygen gas (O2).As oxygen photosynthesis starts,that's when the first O2 producing of cyanobacteria occurs.The graph reaches a peak at Cambrian explosion.

The two main zones within the A climate are

Answers

Answer:

The Earth has three main climate zones: tropical, temperate, and polar. The climate region near the equator with warm air masses is known as tropical. In the tropical zone, the average temperature in the coldest month is 18 °C.

The climate has three main zones such as tropical, temperate, and polar.

What are Earth's climatic zone?

A climate zone refers to a condition by observing different factors like temperature, humidity, precipitation, season and natural vegetation of an area.

Earth's climate zones is surrounded by the horizontal belts of different climates such as tropical, dry, temperate, continental, and polar zones.

Firstly, Tropical climate zones which present near the Equator of earth and have high temperatures and high precipitation, while Dry or arid climate zones shows high temperatures  and little annual precipitation.

Similarly temperate climate zone observed  Earth’s middle latitudes and shows wider temperature and seasonal variations are more distinct.

Continental climate zone observed in mid-latitudes, shows swing of  temperatures  from cold in winter to warmer, where as polar climate zones shows harsh climate which cannot to support vegetation.

Hence, major zones are tropical, temperate, and polar.

Learn more about climate zone, here:

https://brainly.com/question/25130150

#SPJ5

A student is testing a silver colored rock sample with the lab equipment shown in the
diagram above. The silver colored rock completes the circuit and lights the bulb.
The student concludes the sample could be which of the following?
I. metal
II. metalloid
III. nonmetal

Answers

there’s no diagram :/
We need a diagram... can you find it online so we can search it up?

How is the use of fossil fuels creating an imbalance in the carbon cycle?

Answers

Answer:

We are burning more CO2 than plants can take in and make into oxygen.

Fluids fill in the spaces between the particles of sediment and
crystallize to create a rock by
a Clastic
b Compaction
C Crystallization
d Cementation

Answers

Answer:

D- Cementation

Explanation:

Cementation, in geology, hardening and welding of clastic sediments (those formed from preexisting rock fragments) by the precipitation of mineral matter in the pore spaces. It is the last stage in the formation of a sedimentary rock.

Hope this helps!

Earths magnetic fields does not affect

Answers

Earth magnetic fields does not effect :Humans health

Answer: a: another planet

Explanation:

Which statements describe asexual reproduction? Check all that apply

Answers

Answer:

-Results in offspring with the same DNA as parent.

-Requires only one parent to produce offspring.

-Includes cell divisions that are similar to the cell divisions in mitosis.

Explanation:

Those should all be right but I'm 98% sure about the last one.

Answer:

what the guy above me said

Explanation:

Circle the word that best completes the statement about cell theory.
6. The cell theory states that:
i. All organisms are made of organelles / cells.
ii. All existing cells are produced by other living dead cells.
111. The atom cell is the most basic unit of life.
7. Cell theory is one of the great unifying theories of biology / chemistry.
MAIN IDEA: Prokaryotic cells lack a nucleus and most internal structures of
eukaryotic cells.

Answers

Question reformatted:

Circle the word that best completes the statement about cell theory.

6. The cell theory states that:

i. All organisms are made of organelles / cells.

ii. All existing cells are produced by other living / dead cells.

iii. The atom / cell is the most basic unit of life.

7. Cell theory is one of the great unifying theories of biology / chemistry

Answer:

6. The cell theory states that:

i. All organisms are made of cells.

ii. All existing cells are produced by other living cells.

iii. The cell is the most basic unit of life.

7. Cell theory is one of the great unifying theories of biology

Explanation:

Cell theory is one of the central theories of biology and is universally accepted. It states that all organisms are cellular - that is they are made of cells. It also states that all living things come from other living cells (not spontaneously, or from dead cells). The cell is the most basic unit of life, organisms can be unicellular, but no living thing is 'less' than that.

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