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Effectus [21]
2 years ago
7

How does the mutation present in 10% of Europeans protect their cells from HIV?

Biology
2 answers:
worty [1.4K]2 years ago
7 0

Answer:

The mutation, which affects a protein called CCR5 on the surface of white blood cells, prevents HIV from entering these cells and damaging the immune system. Around 10% of today's Europeans carry the mutation, a significantly higher proportion than in other populations.

Explanation:

I hope this helps:)

Alexandra [31]2 years ago
6 0
The mutation, which affects a protein called CCR5 on the surface of white blood cells, prevents HIV from entering these cells and damaging the immune system. Around 10% of today's Europeans carry the mutation, a significantly higher proportion than in other populations.
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Where do trees get the matter with which they grow
andrezito [222]

Answer:

So where does the mass come from? The mass of a tree is primarily carbon. The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.

Explanation:

Hope this helps!!

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4 0
2 years ago
What type of clouds are outside today
muminat

It would depend.

The weather might be different form mine. I can give you the four main types of clouds there are to help you identify them.

Cirrus clouds are wispy, feather like clouds. They are higher than the other types of clouds.

Stratus clouds are low level clouds that are light gray. They might cause fog.

Cumulus clouds are puffy, white clouds.

Cumulonimbus could are very tall clouds that produce T-Storms. They are a very dark gray.

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3 0
2 years ago
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slamgirl [31]

Explanation:

Fermentation is another anaerobic (non-oxygen-requiring) pathway for breaking down glucose, one that's performed by many types of organisms and cells. In fermentation, the only energy extraction pathway is glycolysis, with one or two extra reactions tacked on at the end.

6 0
3 years ago
When solar radiation enters Earth’s atmosphere, about 23 percent is absorbed in the atmosphere and about 48 percent is absorbed
Vlad [161]
I think Earth’s atmosphere plus atmosphere. So, 23+48=71. So, the answer is A
8 0
2 years ago
Suppose the Moon rotated on its axis just as quickly as Earth. Would we still always see the same side of the Moon from Earth? E
Snezhnost [94]

Answer:

Yes

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