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1
A competition between two species in which the interaction is detrimental to one species but not the other is most accurately referred to as
A)parasitism.
B)amensalism.
C)mutualism.
D)neutralism.
E)commensalism.
2
Which one of the following most accurately represents a species interaction which has a positive effect on one species and a negative effect on the other?
A)Predation
B)Parasitism
C)Herbivory
D)Predation and herbivory
E)Predation, parasitism, and herbivory
3
True or False: When both species benefit from an interaction between the two, the relationship is most accurately referred to as mutualism.
A)True
B)False
4
Which one of the following is not suggested by a top-down model of population control?
A)Predators control populations of their prey.
B)Herbivores control populations of plants.
C)Organisms select food based on the nitrogen content of the tissues.
D)Predators control populations of their prey
E)Predators control populations of their prey, herbivores control populations of plants, and organisms select food based on the nitrogen content of the tissues
5
When a patient is prescribed an antibiotic to alleviate a bacterial infection, the action of the antibiotic is an example of
A)allelopathy.
B)intraspecific interference competition.
C)intraspecific resource competition.
D)interspecific interference competition.
E)interspecific resource competition.
6
True or False: Random variation, referred to as stochasticity, is an important factor in nature but does not typically contribute to controlled laboratory experiments.
A)True
B)False
7
Which of the following statements about coexistence of two or more species is correct?
A)Two species may coexist if each occupies its own niche
B)Differences in morphology
C)Resource portioning allows coexistence
D)The competitive exclusion principle allows two or more species to coexist.
E)All of the statements regarding coexistence of two or more species is correct.
8
True or False: Character displacement describes the convergence of two species in morphology due to common resource use.
A)True
B)False
9
Which of the following statements most accurately describes the competitive exclusion hypothesis?
A)In a competition between humans and another species, humans will eventually drive the other species out.
B)A physically larger species will always win a competition with a physically smaller species.
C)Species that are complete competitors cannot coexist.
D)A species with a larger genome will always win a competition with a species with a smaller genome.
E)None of the above accurately describe the competitive exclusion hypothesis.
10
Species that occur in the same geographic area are referred to as ___________; species that occur in different geographic areas are referred to as ____________.
A)heteropatric; allopatric
B)heteropatric; homopatric
C)allopatric; sympatric
D)sympatric; homopatric
E)sympatric; allopatric
11
Match the antipredator strategy on the left with the appropriate description on the right.
i: Batesian mimicryA: convergence of appearance between two or more toxic species.
ii: Chemical DefenseB: Copying the coloration of a toxic species by a non-toxic species
iii: Mullerian mimicryC: camouflage
iv: Cryptic colorationD: aposematic coloration
A)i = d; ii = b; iii = a; iv = c
B)i = b; ii = d; iii = c; iv = a
C)i = b; ii = d; iii = a; iv = c
D)i = d; ii = b; iii = c; iv = a
E)i = a; ii = c; iii = d; iv = b
12
True or False: Some species ensure overall survival by producing more progeny than predators can consume, which is known as masting.
A)True
B)False
13
Among trees and plants, which of the following antipredator strategies is the most common?
A)Masting
B)Armor
C)Chemical defenses
D)Escape
E)Displays of intimidation
14
Which one of the following statements about predator-prey interactions is incorrect?
A)The introduction of an invasive species into a new habitat sometimes results in the extinction of one or more species native to the habitat.
B)When prey supply is determined by factors other than predation, this is referred to as a donor-controlled system.
C)The removal of predators in a donor-controlled system has little effect on prey population.
D)Predators have an insignificant effect on prey populations in a predator-controlled system.
E)All of the statements about predator-prey interactions are correct.
15
Which of the following is considered a secondary metabolite?
A)alkaloids
B)phenolics
C)terpenoids
D)Phenolics and terpenoids
E)Alkaloids, phenolics, and terpenoids
16
True or False: In terrestrial systems, invertebrate herbivores have a greater effect on plants than vertebrate herbivores.
A)True
B)False
17
Match the type of parasitism on the left with the appropriate description on the right.
i: holoparasiteA: photosynthetic plant parasites
ii: ectoparasiteB: nonphotosynthetic plant parasites
iii: HemiparasitesC: external parasites
A)i = c; ii = a; iii = b
B)i = a; ii = b; iii = c
C)i = a; ii = c; iii = b
D)i = b; ii = c; iii = a
E)i = b; ii = a; iii = c
18
Which of the following would most accurately be referred to as a macroparasite?
A)Tick
B)Tapeworm
C)Flea
D)Leech
E)Mosquito
19
Plants and their pollinators display which of the following types of relationship?
A)Commensalism.
B)Dispersive mutualism.
C)Facultative mutualism.
D)Obligatory mutualism.
E)Defensive mutualism.
20
True or False: When one organism uses another organism for transportation, this is a type of commensalism referred to as phoresy.
A)True
B)False





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