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Whitepunk [10]
3 years ago
11

What keeps the Sun from expanding any further? A. Solar wind B. Hydrogen C. Gravity D. Visible light

Biology
1 answer:
lubasha [3.4K]3 years ago
6 0

Answer: The answer is B. Hydrogen.

Explanation:

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Answer:

I think is C.

Explanation:

Oh and the mouse is not cute.

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3 years ago
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Why does a virus lethal to us not infect animals? I know that RNA viruses mutate at 10,000 to a million times faster than DNA vi
Setler [38]

The virus needs to speak the molecular language of cells. This is how he manages to dominate and enslave them so that they become factories for new viruses, producing the proteins that the infectious agent requires to assemble its descendants. If this conversation is not fine-tuned, even if the virus has the key and enters, it is doomed to failure.

<h3>Why does a virus lethal to us not infect animals?</h3>

For a virus to be able to enter a cell, it must have the right key. And this key, which are the proteins on the surface of viruses, has to enter the correct lock, the receptors that are on the cell membrane. Cells are actually houses with many different doors and locks. Some viruses have keys that open the lock of any cell and any kind of host, and others do not, so the infection caused by viruses is specific.

With this information, we can conclude that some viruses have keys that open the lock of any cell and any kind of host, and others do not, so the infection caused by viruses is specific.

Learn more about virus in brainly.com/question/1427968

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8 0
2 years ago
Explain three differences between apomictic and automictic parthenogenesis.
a_sh-v [17]
Apomictic refers to plants and it means the offspring is genetically identical to the parent. Automictic means that gametes fuse after meiosis - which means offspring are genetically not identical to parents.
6 0
3 years ago
The answer is NOT Zacharias Janssen. Asap please
grin007 [14]

Answer:

b

Explanation:

Van leeuwenhoek, hope this is right! good luck!

5 0
3 years ago
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Zielflug [23.3K]

Answer:

carbohydrates

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