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IRISSAK [1]
3 years ago
13

Which is a need? A.shelter B.gum C.chocolate bar D.toys

Biology
1 answer:
Degger [83]3 years ago
8 0

Answer:

A-Shelter, the others are for enjoyment while shelter takes care of your physical state

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A segment of dna has 320 nitrogen bases. if 40 of them are cytosine, how many are thymine
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Cytosine = 40, Cytosine = Guanine.
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Adenine = x and Thymine = x.
2x = 240.
X = 240/2
X = 120.
Adenine 120, Thymine = 120, Cytosine = 40 and Guanine = 40.
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