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NISA [10]
2 years ago
13

A skeletal muscle is a composition of several components bundled one into the other. at which structural level in the muscle doe

s contraction occur to bring about contraction in the whole muscle?
Biology
1 answer:
Alexandra [31]2 years ago
8 0

The structural level in which the muscle produces the contraction is known as the muscle fiber.

<h3>What is a muscle fiber?</h3>

A muscle fiber is a single muscular cell that is able to contract by using specialized proteins such as filaments of myosin and actin.

This unit (muscle fiber) is able to contract both in vivo and in vitro by establishing suitable environmental conditions (e.g., proper calcium levels).

In conclusion, the structural level in which the muscle contracts is the muscle fiber.

Learn more about muscle fibers here:

brainly.com/question/27960158

#SPJ1

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Which neural pathway carries crude information about a threatening stimulus and activates a rapid instinctual alarm response?
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The correct answer is

B. the thalamus→amygdala pathway

The neural pathway carries crude information about a threatening stimulus and activates a rapid instinctual alarm response is the thalamus→amygdala pathway

The thalamus→amygdala pathway is also known as the the path of fear. The thalamus transfers signal to other parts of the brain that causes the release of adrenaline and stress hormones.


4 0
3 years ago
Which TWO do you think have the FEWEST differences in amino acid sequences?Defend your response.
azamat

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3 years ago
WILL GIVE BRAINLIEST
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<span>The trick here is to understand the definition of each of the cellular transport or function mechanisms listed. These are some interesting (and strange) analogies!

Facilitated Diffusion
This is when a mechanism assists in diffusing (spreading) some material into an environment. The dog on the wagon going through a spring loaded door would shoot it out into the environment. This is an odd analogy but Point 3 would be the one.

Active Transport 
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Phagocytosis 
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Passive Diffusion
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Pinocytosis
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3 years ago
Which structure of the cell contains the cell's genetic information?
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