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Margarita [4]
3 years ago
15

What happens to DNA before cell division?

Biology
1 answer:
Tju [1.3M]3 years ago
7 0
Since two daughter cells will be created during cell division, the DNA needs to duplicate itself so that each cell gets the same DNA as the parent cell. it then condenses into chromosomes that are symmetrical, with each sister chromatid on either side containing identical information.
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The skin is richly supplied with arteriovenous anastomoses in which blood flows directly between an artery and a vein, bypassing
yaroslaw [1]

Answer: Temperature control

Explanation:

Arterio-venous anastomoses (AVAs) are direct connections between small arteries and small veins. In humans they are numerous in the glabrous skin of the hands and feet.

They are very significant in body temperature control. These temperature control are under the dual control of the central nervous system and the local thermal influence. While the arteriovenous anastomoses control the skin temperature through volume changes in the superficial venous bed, the arterioles and capillaries operate by generalized dilatation which results both in increased temperature and in redness of the skin.

7 0
3 years ago
Which conclusion is best supported by Daniels observations and discoveries
Pani-rosa [81]
Since there are no choices, it will be difficult to answer your question.
Let's say these are the choices:

A. The liquid is a pure substance because it is colorless.
B. The liquid is a mixture because its temperature rises.
C. The liquid is a pure substance because it remains liquid when cold.
D. The liquid is a mixture because it has a gas dissolved in a liquid. 

your answer is D. The liquid is a mixture because it has a gas dissolved in a liquid. 
3 0
3 years ago
Read 2 more answers
Please help 20 points and brainliest.
Morgarella [4.7K]
What are the questions that go with the model?
4 0
2 years ago
How is the birth rate different from the rate of natural increase?
Furkat [3]
The difference<span> between the </span>birth rate<span> and the death </span>rate<span> of a country or place is called the </span>natural increase<span>. </span>
8 0
3 years ago
Match the layers of the Earth to their proper composition.
murzikaleks [220]
Lithosphere would go with Solid Rock.
Outer Core would go with Liquid Iron.
Inner Core would go with Solid Iron.
Asthenosphere would go with Liquid Rock.
Hope I helped!
8 0
3 years ago
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