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RoseWind [281]
3 years ago
9

Which of these best describes Earth’s mantle? (3 points)

Biology
2 answers:
SashulF [63]3 years ago
4 0

i think the answer is b

Leto [7]3 years ago
3 0

Heyy there.

I'm thinking that it would be B. or D. but idk exactly which one it is.

I hope you figure out wat it is.


B. Thinnest under the oceans and thickest under continents


D. Least dense layer overall, consists of two layers of different thickness

Good Luck and enjoy the rest of ur day!! ^^

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Sodium and potassium ions move in and out of the axon when the membrane is ______
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Answer:

Answer : Depolarized

Explanation:

Sodium and Potassium ions tend to move inside of the axin when the membrane is depolarized.

A change in polarity occurs in the axon membrane when a nerve impulse travels across it.  At the beginning of an action potential or nerve impulse , the ions of sodium tend to move inside of axon causing depolarization. As a result potassium ions tend to move outside of the axon causing re polarization. Hence, this effect causes the nerve impulse to travel in one direction only inside the axon.

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3 years ago
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Answer:

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Explanation:

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6 0
3 years ago
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Same type of daughter cells

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A

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