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Juli2301 [7.4K]
3 years ago
8

Need help from a pro. This is due at the end of today ( 12/3/20 )

Biology
2 answers:
alexdok [17]3 years ago
4 0

Answer:

answerchoices?

Explanation:

slavikrds [6]3 years ago
4 0
The answe is osmosis correct me if I’m wrong
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Explain how carbon is cycled between the atmosphere and geosphere. Use specific examples.
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Answer:

Carbon starts as coal or oil in the earth, then is brought up by mining or drilling. When brought up, it is used up and the gases go into the atmosphere. Trees, soil and water act as carbon sinks, which suck up all the carbon from the air and contain it. When carbon is absorbed by the soil, it goes back into the ground.

Explanation:

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3 years ago
How many years did it take to double between .5 billion and 1 billion?
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2

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In the dna double helix archaic pairs with thymine and cytosine pairs with guanine
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Adenine which is a purine base, always pairs with the pyrimidine Thymine in DNA and Uracil(also a pyrimidine) in RNA. The bond which is present between the two bases is a double hydrogen bond.

Guanine which is also a purine base, always pairs with the pyrimidine Cytosine, in the case of both, DNA and RNA. The bond which is present between the two bases is a triple hydrogen bond and hence, is stronger than the A-G double bond.

3 0
3 years ago
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Radiation. Have a nice day.
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