Ten frogs live in a pond in your backyard, five are homozygous for an allele that results in dark skin, and five are homozygous for an allele that results in lighter skin. A drought occurs, killing three frogs with light skin alleles. The rest of the population breeds and produces the next generation of frogs. Did the frog population evolve?

Yes

Explanation:

The allele frequencies of light to dark alleles were 1:1 before the drought. After the drought the frequency of light to dark skin alleles became 3:5.

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answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

a) carbon, hydrogen

b) carbon, hydrogen, oxygen, nitrogen

c) carbon, hydrogen, oxygen, nitrogen, phosphorus

d) sugar

e) amino acid

f) nucleotide