Pioneer species are usually characterized by ____
A. small size
B. tolerance to extreme environmental conditions
C. slow maturation
D. small size and tolerance to extreme environmental conditions
E. small size and slow maturation
Answer: D
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When calculating the allele frequency for allele A in a population, why do you multiply the frequency of individuals who are homozygous for A by 2?
A. Because if A is dominant, it will show up twice as much. B. Because each individual homozygous for A has two copies of the allele. C. Because there are always twice as many homozygous individuals as heterozygous individuals. D. Because individuals homozygous for A will produce twice as many offspring. E. Because individuals homozygous for A will be twice as likely to survive.
Which of the following is not a function of bone? a. Protect soft internal organs from harm
b. Support and anchor muscles. c. Blood cell formation. d. Reservoir for sodium and calcium ions. e. Change position of the body.
Diet-induced thermogenesis
What will be an ideal response?
Which of the following is a recognized way that the processes of natural selection and speciation may mitigate the concerns of conservation biologists?
A. The fragmentation of habitats promotes geographic isolation of populations, an important aspect of speciation. B. Species that go extinct provide additional resources for populations that remain intact. C. Hybridization between an introduced and a native species can promote speciation, especially in plants. D. Hybridization between two introduced species can promote speciation, especially in plants.