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Hatshy [7]
3 years ago
15

6. Critical Thinking

Biology
1 answer:
Oxana [17]3 years ago
8 0
In eukaryotes, chromosomes are complex structures that are formed by tightly coiled DNA looped around histones. They are enclosed in the nucleus. Prokaryotic chromosomes are a loop of DNA in the cytoplasm
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The options

a. sympatric speciation; vicariance

b. allopatric speciation; vicariance

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