in what situation might natural selection maintain a recessive allele even if it is harmful
a. homozygous recessive individuals have a higher fitness than heterozygous individuals but only rarely survive long enough to reproduce
b. mutation rates are high enough that the recessive allele reappears even though it is lethal
c. individuals that are heterozygous for a gene have a higher survival and reproductive rate than individuals that are homozygous for the gene
d. homozygous dominant individuals have a higher survival and reproductive rate than individuals that are heterozygous for the same gene
c. individuals that are heterozygous for a gene have a higher survival and reproductive rate than individuals that are homozygous for the gene
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What characterized the sphenopsid plant group?
The current drought in the American Southwest is
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The ____________________ wind has been nicknamed the "snow eater."
Fill in the blank(s) with correct word