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Dennis_Churaev [7]
2 years ago
12

What piece of evidence supports the viral model presented in Viewpoint #2 that viruses are non-living?

Biology
1 answer:
oksian1 [2.3K]2 years ago
5 0

Answer:

b. viruses do not undergo mitosis

Explanation:

One characteristics of non-living things is their ability to reproduce. Viruses on their own lack this ability to reproduce their kind. Mitosis is a form of reproduction where one cell divides to form two daughter cells. Viruses do not undergo mitosis.

Viruses are just an assembly of biochemical particles that need to gain entrance into a living cell to be able to multiply.

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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
Read 2 more answers
All the biological macromolecules contain carbon, hydrogen and oxygen. However, most do not contain nitrogen. The category that
topjm [15]

Answer:

A. lipids

Explanation:

8 0
3 years ago
What is insulin and why do people with Type 1 diabetes need it to survive?
Marina86 [1]

Answer:

Insulin is needed to move blood sugar (glucose) into cells. Inside the cells, glucose is stored and later used for energy. With type 1 diabetes, beta cells produce little or no insulin.

6 0
2 years ago
If you could genetically engineer any species of organism, what would it be? Would it be a unicorn? A dog-cat hybrid? Your
musickatia [10]

Answer: I would make my own giant and it would have long hair and live i the mountains, and it needs the cold weather to survive. Some of the things that it eats is the things humans eat like duck, chicken, ham, and uh yeah.

7 0
3 years ago
_____________-The form of cell division by which___________, with ______ the number of ____________________________, are produce
lubasha [3.4K]

Answer:

Meiosis, Gametes, chromosomes

Explanation:

Meiosis is the type of cell division which produces gametes, which have half the number of chromosomes.  

I think this is what they want!

Hope this helps!

6 0
2 years ago
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