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lianna [129]
2 years ago
15

Spindle fibers are composed of which type of protein?

Biology
1 answer:
Tamiku [17]2 years ago
6 0

Answer:

Hey there. The answer should be Tubulin.

Explanation:

Spindle fibres are formed from microtubules which are made up of a protein called Tubulin.

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After arousal by a sensory stimulus, consciousness can be maintained by positive feedback, because of activity in the
KIM [24]

Answer:

This question lacks options, options are:

A) cerebral cortex.

B) basal nuclei.

C) sensory pathways.

D) motor pathways.

E) All of the answers are correct.

The correct answer is E.

Explanation:

The cerebral cortex processes and filters its information before passing the most relevant aspects to other regions of the brain. Some of these brain regions, in turn, send information back to the cortex. These loops, known as 'feedback systems', are considered essential for the functioning of cortical networks and their adaptation to new sensory information. Neural circuits must first assess the importance of incoming sensory information and then refine how it is processed in the future. Positive feedback, triggered with the purpose of amplifying the response to the initial stimulus, can be compared to a chain reaction or a vicious circle. Few are the functions regulated by this mechanism; rather it is triggered in pathological situations. It is the system by means of which the organism very rarely regulates any of the bodily functions under normal conditions, making the initial stimulus to be maintained and even increased. This type of mechanism is predominantly present in pathological situations: Its constitutive elements are: stimulus, receptor, afferent pathway, integrating center, efferent pathway, effector and response. The response does not have the ability to satisfy the initial stimulus.

6 0
3 years ago
Which of these is responsible for the “rough” appearance of endoplasmic reticulum? DNA Enzymes lysosomes Ribosomes
iris [78.8K]

Answer:

esplanations

Explanation:

4 0
3 years ago
When the homeostasis of the body is disrupted which of the following can occur?
Irina18 [472]

Answer: I think it's (f) all of the above.

Explanation

Because It regulates temperature, glucose, toxins, blood pressure, and pH.

8 0
3 years ago
a scientist kept 500 grams of a radioactive material in a container. after 60 minutes, he observed that 62.5 grams of the radioa
Gnoma [55]
After the 1st half-life 250 g of the radioactive material will be left. 
<span>After the 2nd half-life 125 g of the radioactive material will be left. </span>
<span>After the 3rd half-life 62.5 g of the radioactive material will be left. </span>

<span>Therefore after 60 minutes, 3 half lives would have occurred. </span>

<span>Therefore the half-life = 60 / 3 = 20 minutes when 250 grams of the original material would have remained radioactive. </span>

<span>Therefore the answer is A) About 250 gram of the material decayed in 20 minutes.</span>
7 0
4 years ago
is carbon atoms move between the atmosphere and organisms connecting earths biosphere and atmosphere true or false
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The answer is false then explain your answer
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