Answer:The North frigid zone, between the Arctic Circle 66.5° N and the North Pole 90° N. Covers 4.12% of Earth's surface. The North temperate zone, between the Tropic of Cancer 23.5° N and the Arctic Circle..
Explanation:
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Answer:about <em>6-8</em> <em>weeks</em>
Explanation: about <em>6-8</em> weeks to process from the time that the lab receives your DNA sample.
Closely related species often look similar but have courtship rituals that are slightly different to ensure that mating occurs between member of the same species. The correct option among all the options that are given in the question is the third option or option "c". This is to preserve the specialties that each species have.
A. Patient is male because there is a Y chromosome
B. 47 chromosomes
C. Down syndrome or trisomy 21
