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julia-pushkina [17]
2 years ago
7

When breathing, which body was part contracts to help expand the lung and relaxes to allow air exhalation?

Biology
1 answer:
SOVA2 [1]2 years ago
3 0
C is your answer hope that helps!
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Explain why an envelope virus that simply leaks out of an infected cell can be worse than a virus that quickly lyses and kills t
o-na [289]

Answer:

The enveloped viruses are resistant to disinfectants.

Explanation:

The outer covering or the envelope in the virus comes from the infected cell. This envelope is formed by the process called as budding off, from the host cell. The envelope that covers the virus provides resistance to various disinfectants and prevent virus from damage. The outer coat (envelope) is formed of a small part of cell membrane.

The virus that lyses and kills the cell immediately is less worse than the enveloped virus. The virus that kills cells immediately prevents the host cell from continuously synthesizing new virus particles. Thus, no more viral particles can be produced by the host cell. So, envelope viruses are worse that viruses that directly kills the host cell.  

6 0
3 years ago
What factors limited human population growth in the past?
lapo4ka [179]

Answer:

Limiting factors include a low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration. When organisms face limiting factors, they show logistic growth (S-shaped curve, curve B: Figure below).

Explanation:

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3 years ago
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PLEASE HELP!!!! DUE AT MIDNIGHT
saw5 [17]

Answer:

Exocarp is the outer layer

Endocarp surrounds the seed so I suppose the papery part

Mesocarp I think is the fleshy stuff.

Hope it helps!

Explanation:

4 0
3 years ago
What happens to a tadpole after about 70 days of life?
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D. it is a full adult frog.
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I need help asap in the sculpturing earths surface unit test lesson 9 unit 5
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Endogenous processes - Under surface of the earth.
Exogenous processes - Above the surface of the earth.
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Plates - made of thick slabs of rock, compose the crust/ocean crust .

7 major plates - Pacific, North America, South America, Eurasian, Antarctic, indo-Australian
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