Chapter 57

A species interaction in which one species benefits but the other species is unharmed is called a. mutualism. b. amensalism. c. parasitism. d. commensalism. e. mimicry.

Two species of birds feed on similar types of insects and nest in the same species of tree. This is an example of a. intraspecific competition. b. interference competition. c. exploitation competition. d. mutualism. e. none of the above.

According to the competitive exclusion hypothesis, a. two species that use the exact same resources show very little competition. b. two species with the same niche cannot coexist. c. one species that competes with several different species for resources will be excluded from the community. d. all competition between species results in the extinction of at least one of the species. e. none of the above is correct.

In Lack's study of passerine birds in Britain, different species seem to segregate based on resource factors, such as location of prey items. This differentiation among the niches of passerine birds is known as a. competitive exclusion. b. intraspecific competition. c. character displacement. d. resource partitioning. e. allelopathy.

Divergence in morphology that is a result of competition is termed a. competitive exclusion. b. resource partitioning. c. character displacement. d. amensalism. e. mutualism.

Ticks are regarded as a. monophagous endoparasites. b. monophagous ectoparasites. c. polyphagous endoparasites. d. polyphagous ectoparasites. d. none of the above.

Batesian mimicry differs from Müllerian mimicry in that a. in Batesian mimicry, both species possess the chemical defense. b. in Batesian mimicry, one species possesses the chemical defense. c. in Müllerian mimicry, one species has several different mimics. d. in Müllerian mimicry, one species has several different chemical defenses. e. in Batesian mimicry, cryptic coloration is always found.

Poppies are protected from herbivores by the a. alkaloid nicotine. b. alkaloid morphine. c. phenolic tannin. d. phenolic lignin. e. terpenoid caffeine.

Parasitic plants that rely solely on their host for nutrients are called a. hemiparasites. b. fungi. c. holoparasites. d. monophagous. e. polyphagous.