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Artyom0805 [142]
3 years ago
5

What keeps the two DNA strands separate during replication?

Biology
1 answer:
ser-zykov [4K]3 years ago
8 0
Single strand binding phosphates. the 4 phosphorus-based acids in DNA are adenine, thymine, cytosine, and guanine. RNA has uracil instead of thymine.
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Explanation:

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3 years ago
1. What are three things that water variability affects for us?
IRINA_888 [86]
1. Drought period - in time periods where there is more precipitation there is more water availability, and when there's not there isn't.
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2. The land, air, and water are heated each day by the sunlight. The heat produced by the sun that hits the earth as the earth rotates is then part kept by the atmosphere that doesn't permeate all of that heating energy.
3. By evaporation. As the sun heats the ocean, there is evaporation. As the ocean moves around with its tides there is also loss of water to the air. Also by the waves and winds there is water that's lost to the air.
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3 0
3 years ago
1.Explain how is small intestine designed to absorb digested food.
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Digestion is one of the longest process taking place in the human body. The process of digestion involves several steps as well as the organs. It starts with the mouth and ends at the anus. The track is also referred to as alimentary canal. The organs involved in the alimentary canal are mouth, oesophagus, stomach, small intestine and large intestine. Small intestine is one among them and plays a major role. Let us explore the importance of small intestine in digestion of food.
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3 years ago
Please help!! Will mark brainiest!
ZanzabumX [31]

Answer:

<em>Bioaccumulation</em>

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<em>Bioaccumulation is t</em><em>h</em><em>e</em><em> </em><em>of </em><em>accumulation</em><em> </em><em>of </em><em>harmful </em><em>chemicals.</em>

3 0
2 years ago
What cell is 20 micrometers across
Brums [2.3K]

Answer:

The eukaryotic cell is 20 micrometer across.

Explanation:

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The prokaryotes are up to 0.2 µm to 50 µm, which are an exception among the organisms. However eukaryotic cells have a diameter in the range of 5 to 20 µm.

7 0
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