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Masteriza [31]
3 years ago
5

An action potential enters the depths of a muscle fiber by way of __________.

Biology
1 answer:
Fynjy0 [20]3 years ago
7 0
The answer is the T tubules. 
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Name one structure found in an animal cell that is not found in a plant cell.
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lysosomes or centrosomes

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The player's kicking foot is moving in which anatomical directions in the picture above? (2 points)
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Anterior and superior.
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Which of the following is an example of natural selection?
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A) Hummingbirds drinking nectar from a plant.

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Here are some examples of natural selection: In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.

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Plant cells that are specialized for cell division are most likely found in what part of a plant?
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Explanation:

Terrestrial plants have stomata on the surface of their leaves. A single stomata is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma.

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<em />

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4 0
3 years ago
blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, the bl
snow_tiger [21]

Blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, alternately increases and then decreases.

<h3>What is the purpose of blood flow in heart?</h3>

The removal of positive charge by electrochemical gradients causes the membrane potential of the cell to shift more strongly in the direction of the equilibrium potential for potassium.

The membrane would become more negative as potassium permeability through the membrane increased. Given that potassium is a positively-charged ion and that the intracellular environment has a net negative charge, enhancing the membrane's permeability would result in a more negative membrane.

For instance, the amplitude of the potassium concentration gradient across the myocyte decreases as the external potassium level rises, lowering the resting membrane potential.

To know more about blood flow in heart you may visit :

brainly.com/question/4220852

#SPJ4

4 0
1 year ago
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