In studying the medium ground finch on Daphne Major, the Grants noted that each generation of finches had beaks
A. best suited for their parents' environment.
B. best suited for their current environment.
C. smaller than those of the previous generation.
D. larger than those of the previous generation.
A. best suited for their parents' environment.
Each generation of finches inherited beak size from the previous (parental) generation; it was the parental generation on which selection had acted to produce the offspring generation's distribution of beak size.
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Humans have a quasi-exponential growth curve because they can do which of the following?
a. Adapt to their current environment quickly. b. Produce many offspring at one time. c. Alter their environment like no other species on Earth. d. Produce offspring rapidly.
All of the populations of different species that
occupy and are adapted to a given area are a. the biosphere. b. a community. c. an ecosystem. d. a niche. e. an ecotone
Describe why there is no Rh factor conflict if the mother is Rh positive and the father is Rh negative.
What will be an ideal response?
Genetic drift cannot eliminate a beneficial allele from a population.
a. true b. false