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Dimas [21]
3 years ago
14

I NEED HELP QUICK!!!!

Biology
1 answer:
tatyana61 [14]3 years ago
7 0
1. D
2. C ( I think )
3. C. ( I think )
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Marcus is taking a hiking trip in the mountains. He sees long scratches on the rock walls. The area was most likely eroded by a
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<span>The area was most likely eroded by a earthquake. Feel free to message me if you have any other questions.

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3 years ago
If a plant's leaves developed so that its vascular tissue only contained xylem, how would this affect the rest of the plant's ph
Snezhnost [94]

Answer:

If a plant's leaves only contained the vascular tissue xylem, then it will not be possible for the plant to absorb carbon dioxide. As carbon dioxide is required for photosynthesis to occur, this means that the process of photosynthesis will not take place. As a result, the plant will not be able to produce food as photosynthesis is the process by which plants make food. This will result in the plant to die eventually in the end due to lack of food.

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3 years ago
Many diseases are caused by a disruption in the metabolism of glycogen, which can lead to an excess of glycogen being stored in
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If there is too much of glycogen and fat stored in a cell can be toxic. It damages the organs and leads to diseases.

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3 0
3 years ago
What was the sequence of human migration across the planet?
prisoha [69]
Human migration is the movement over long distances, movement from one country/region  to another ) by people . Humans moved because of the c<span>hanging climate and landscape and inadequate food supply. </span>The first human movement was t<span>he movement of </span>Homo erectus<span> out of Africa across </span>Eurasia<span> about 1.75 million years ago. </span> 
Than industrialization<span> encouraged migration wherever it appeared.
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7 0
3 years ago
Assuming average nucleosome spacing throughout the genome, how many molecules of histone H2A are present in the chromatin of one
Mashcka [7]

Answer: Two molecules of H2A

Explanation:

Structural organization of nucleosomes were determined by isolating them from unfolded chromatin and it has been found that the basic units of chromatin are the nucleosomes which consist of histone octamers of two molecule each of histone H2A and other histone molecules like H2B, H3 and H4. The histones are wrapped around with 147bp of DNA in almost two (2) turns.

5 0
3 years ago
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