How did researchers explain the smaller size of sexual maturity for guppies in some Trinidad streams?
a. Some low-quality streams have small carrying capacities, which forces guppies to reach sexual maturity more quickly
b. Smaller streams require that individual fish be smaller at sexual maturity.
c. Smaller sexually mature guppies were those that had hybridized with killifish, another small fish found in Trinidad.
d. When predators select larger fish, the smaller fish reaching sexual maturity will experience increased fitness.
d
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For the relative proportions of alleles and genotypes in successive generations to stay the same, which condition must
be met for the population? a. There can be no natural selection. b. A population must not be very large. c. There can only be mating between relatives. d. A population can only have some migration. e. A population can have only occasional matings.
If a child more strongly resembles one parent's physical traits than the other parent's, the explanation could be due to chromosome movements during
A) prophase II. B) anaphase II. C) metaphase II. D) telophase I. E) anaphase I.
How do members of Archaea differ from the Bacteria?
What will be an ideal response?
What cell type can the Simplexviruses infect latently?
A) B cells B) epithelial cells C) neurons D) T cells E) multiple cell types