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Yuki888 [10]
3 years ago
13

The myelin sheath on a neuron allows nerve impulses to be faster because A. neurotransmitter molecules are released in greater a

mounts. B. the myelin sheath covers the entire axon. C. nerve impulses jump from node to node as they move down the axon. D. the threshold is met much faster.
Biology
2 answers:
Over [174]3 years ago
6 0
The answer is B Because fat (myelin) acts as an insulator, membrane coated with myelin will not conduct an impulse.
Alex17521 [72]3 years ago
3 0

Answer:

The Correct Answer is C.

Explanation: nerve impulses jump from node to node as they move down the axon.

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Question 3 (2.25 points)
grigory [225]
D. Conclusion

After gathering data in support of a hypothesis, you can make a conclusion.

A hypothesis has to be tested multiple times by multiple researchers to become a theory. A fact has to be proven multiple times as well (but theory is a much better word).
7 0
3 years ago
Explain why cell contents and their environment are likely to freeze under extremely cold temperatures
Mrrafil [7]

Answer:

Explanation:

A fall in temperature can also adversely affect cell and cell membranes. At low temperatures, the phospholipids' fatty acid tails are moving less and stiffer. This reduces the membrane's overall fluidity as well as reduces its permeability and perhaps limits the entry into the cells of vital chemicals like oxygen and glucose. Also, low temperatures can impede cell development by preventing cell size expansion.

In severe cases, such long term exposure to sub-freezing temperatures, fluid in the cell can start solidifying and can form crystals that breach the membrane and destroy the cell.

5 0
3 years ago
Why would a civilization choose to live near a river that regularly floods?
Lubov Fominskaja [6]

I think the answer is A. The presence of alluvium in the flood plain

Could you put me as brainliest?

It leaves fertile soil called alluvium along its banks which is good for planting crops

3 0
3 years ago
Read 2 more answers
The passive transport of water is specifically called ________.
brilliants [131]
The passive transport of water is specifically called osmosis. 
7 0
4 years ago
4. List some indications that things are not all bad and thatprogress toward sustainability is possible.
8090 [49]

Answer:

renewable energy sources

Explanation:

they are the key to true sustainability for mankind they won't poison the water or clog up the air and in some cases such as solar panels that reflect excess uv radiation back into space which could help slow down global warming

7 0
3 years ago
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