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maw [93]
3 years ago
7

In cell division, chromosomes move toward the poles via two different mechanisms: they are either pulled directly along by a tra

nsport protein along kinetochore microtubules or they are enclosed in vesicles for transport along nonkinetochore microtubules.
True or false?
Biology
1 answer:
strojnjashka [21]3 years ago
7 0
Answer is False ( for sure)
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Is this just a random question or is there any information given to us about his parents? if not, C would be your answer
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What do fossil fuels produce
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Once the body has begun shivering, what happens to make it stop shivering?
masya89 [10]

Explanation:

The answer is A.

When the body temperature returns to normal,the respiratory system sends a message to the skeletal system to stop shivering.

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3 years ago
A newborn baby dies soon after birth because her diaphragm and rib cage muscles failed to contract and she was unable to breathe
kozerog [31]

Answer:

Troponin

Explanation:

This is a complex of three proteins  (Trop C, I, T) that are responsible for muscle contraction of  the skeletal and cardiac  muscles . its binds with protein tropomysin  to lie in the grove between the actin filaments.  its prevents contraction by blocking  myosin crossbridge  in a relax muscles.Inorder to aid contractions  calcium ions binds with troponin, which leads to confrontational change.This exposes myosin on actin filaments,  leading to formation of crossbridge and therefore contraction of muscles.

Therefore if there is  a mutation in the gene that encoded Troponin, as explained above, calcium ion  will not be able to bind with tropinin, and there will be no exposure of myosin on actin filaments, no binding of  myosin on actin to cause crossbridge, and consequently no  muscle contraction,

Thus the intercoastal  muscle and diaphragm will not contract leading to death of the baby.

8 0
3 years ago
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Develop an argument as to whether or not the structures and functions of the nervous system work to help prevent injuries. Use e
Vikki [24]

Answer:

Yes.

Explanation:

Yes, the structures and functions of the central nervous system work to help prevent injuries with the help of bone. The main line of defense of central nervous system is the bones of the skull and spinal column, which create a hard physical barrier to injury. If these line of defense are not present for central nervous system so it has more chances to get injury so we can say that the structures and functions of the nervous system helps to prevent injuries.

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