BIOL 301 Exam 3 QUESTIONS WITH
VERIFIED SOLUTIONS
b. II - Correct Answers -A type _____ functional response occurs when a predator's rate
of prey consumption increases linearly with increasing prey and then satiates
a. I
b. II
c. III
d. IV
c. stabilize when prey have refuges - Correct Answers -Huffaker's laboratory experiment
of predator and prey species of mites demonstrated that predator and prey cycles
a. stabilize with increased food sources.
b. stabilize when males are added.
c. stabilize when prey have refuges.
d. are always unstable.
a. the probability of an encounter leading to prey's capture - Correct Answers -In Lotka-
Volterra models of predator-prey interactions, c represents
a. the probability of an encounter leading to prey's capture.
b. the efficiency of converting consumed prey into predator offspring.
c. The per capita mortality rate of predators.
d. the intrinsic growth rate.
Benthic zone - Correct Answers -the area with sediments at the bottom of lakes, ponds,
and oceans; is habitat for burrowing organisms.
Freshwater wetland - Correct Answers -an aquatic biome containing standing fresh
water, or soils saturated with fresh water for at least part of the year; shallow enough for
emergent vegetation throughout all depths.
Wetlands provide animal habitat, and are important natural purification systems.
Swamps - Correct Answers -contain emergent trees
Marshes - Correct Answers -contain emergent non-woody vegetation
,c. equal to zero - Correct Answers -In Lotka-Volterra models, a population is stable
when its rate of change is
a. greater than zero.
b. less than zero.
c. equal to zero.
d. None of the above.
b. joint population trajectory - Correct Answers -Simultaneous examination of predator
and prey population trends is called a
a. dual population trajectory.
b. joint population trajectory.
c. dual population isocline.
d. joint population isocline.
a. coevolution - Correct Answers -The Indian gray mongoose (Herpestes edwardsii) is a
small mammal that is known for its ability to kill venomous king cobras (Ophiophagus
hannah). Mongooses have evolved acetylcholine receptors that make them resistant or
immune to the cobra's venom. What is likely responsible for this?
a. coevolution
b. natural selection
c. structural defenses
d. chemical defenses
b. Mullerian mimicry - Correct Answers -The resemblance of poison dart frog species of
the genus Ranitomeya to one another in Peru is an example of
a. Batesian mimicry.
b. Mullerian mimicry.
c. crypsis.
d. a chemical defense.
c. Batesian mimicry - Correct Answers -The viceroy (Limenitis archippus) is a palatable
North American butterfly that has coloration similar to that of another species of
unpalatable butterfly, the monarch (Danaus plexippus). This is an example of
a. crypsis.
b. Mullerian mimicry.
c. Batesian mimicry.
d. camouflage.
d. predation - Correct Answers -What is the driving force in the 10-year cycle of lynx and
hare abundance?
,a. competition
b. low resources
c. climate change
d. predation
c. caffeine - Correct Answers -Which of the following is an example of a plant alkaloid?
a. tannin
b. lignin
c. caffeine
d. latex
a. horizontal - Correct Answers -A parasite moving between individuals other than
parents and their offspring uses _____ transmission.
a. horizontal
b. vertical
c. diagonal
d. vector
a. low exposure to the host's immune system - Correct Answers -Because of its
relationship with its host, the ectoparasite has
a. low exposure to the host's immune system.
b. low exposure to its natural enemies.
c. low exposure to the external environment.
d. difficulty moving between hosts.
c. Reservoir species do not die of the parasite and can be continuous source of the
parasite - Correct Answers -How do reservoir populations allow parasites to persist in
nature?
a. Reservoir species transmit the parasite more frequently than host species, so the
parasite infects a larger number of individuals.
b. Reservoir species are necessary for reproduction of the parasite.
c. Reservoir species do not die of the parasite and can be a continuous source of the
parasite.
d. Without the reservoir species, the parasite could not disperse from one host to
another.
a. resistant - Correct Answers -In S-I-R models of infectious disease transmission, R
represents _____ individuals.
a. resistant
b. recovered
, c. relocated
d. resilient
a. vector - Correct Answers -In the disease malaria, the Anopheles mosquito is the
a. vector.
b. reservoir species.
c. host.
d. parasite.
a. minimize harm that an infection can cause. - Correct Answers -Infection tolerance is
the ability of a host to
a. minimize harm that an infection can cause.
b. prevent infection by parasites.
c. prevent a parasite from reproducing.
d. recover from an existing infection.
d. vertical; horizontal - Correct Answers -The bacterium that causes chlamydia in
humans can be transmitted from mother to fetus by _____ transmission or between any
two individuals by _____ transmission.
a. horizontal; horizontal
b. vertical; vertical
c. horizontal; vertical
d. vertical; horizontal
a. spend more time out in the open. - Correct Answers -The parasitic worm
Acanthocephalus dirus has evolved an adaptation that causes its isopod host,
Caecidotea intermedius, to
a. spend more time out in the open.
b. be attracted to larger fish.
c. spend more time in refuges.
d. be scared of larger fish.
c. reducing the size of the susceptible population - Correct Answers -Vaccinations slow
or stop the spread of diseases by
a. reducing the virulence of the disease.
b. increasing the rate of recovery.
c. reducing the size of the susceptible population.
d. increasing the number of reservoirs.
c. emerging infection - Correct Answers -When a new disease is discovered, it is called
an _____ disease.
VERIFIED SOLUTIONS
b. II - Correct Answers -A type _____ functional response occurs when a predator's rate
of prey consumption increases linearly with increasing prey and then satiates
a. I
b. II
c. III
d. IV
c. stabilize when prey have refuges - Correct Answers -Huffaker's laboratory experiment
of predator and prey species of mites demonstrated that predator and prey cycles
a. stabilize with increased food sources.
b. stabilize when males are added.
c. stabilize when prey have refuges.
d. are always unstable.
a. the probability of an encounter leading to prey's capture - Correct Answers -In Lotka-
Volterra models of predator-prey interactions, c represents
a. the probability of an encounter leading to prey's capture.
b. the efficiency of converting consumed prey into predator offspring.
c. The per capita mortality rate of predators.
d. the intrinsic growth rate.
Benthic zone - Correct Answers -the area with sediments at the bottom of lakes, ponds,
and oceans; is habitat for burrowing organisms.
Freshwater wetland - Correct Answers -an aquatic biome containing standing fresh
water, or soils saturated with fresh water for at least part of the year; shallow enough for
emergent vegetation throughout all depths.
Wetlands provide animal habitat, and are important natural purification systems.
Swamps - Correct Answers -contain emergent trees
Marshes - Correct Answers -contain emergent non-woody vegetation
,c. equal to zero - Correct Answers -In Lotka-Volterra models, a population is stable
when its rate of change is
a. greater than zero.
b. less than zero.
c. equal to zero.
d. None of the above.
b. joint population trajectory - Correct Answers -Simultaneous examination of predator
and prey population trends is called a
a. dual population trajectory.
b. joint population trajectory.
c. dual population isocline.
d. joint population isocline.
a. coevolution - Correct Answers -The Indian gray mongoose (Herpestes edwardsii) is a
small mammal that is known for its ability to kill venomous king cobras (Ophiophagus
hannah). Mongooses have evolved acetylcholine receptors that make them resistant or
immune to the cobra's venom. What is likely responsible for this?
a. coevolution
b. natural selection
c. structural defenses
d. chemical defenses
b. Mullerian mimicry - Correct Answers -The resemblance of poison dart frog species of
the genus Ranitomeya to one another in Peru is an example of
a. Batesian mimicry.
b. Mullerian mimicry.
c. crypsis.
d. a chemical defense.
c. Batesian mimicry - Correct Answers -The viceroy (Limenitis archippus) is a palatable
North American butterfly that has coloration similar to that of another species of
unpalatable butterfly, the monarch (Danaus plexippus). This is an example of
a. crypsis.
b. Mullerian mimicry.
c. Batesian mimicry.
d. camouflage.
d. predation - Correct Answers -What is the driving force in the 10-year cycle of lynx and
hare abundance?
,a. competition
b. low resources
c. climate change
d. predation
c. caffeine - Correct Answers -Which of the following is an example of a plant alkaloid?
a. tannin
b. lignin
c. caffeine
d. latex
a. horizontal - Correct Answers -A parasite moving between individuals other than
parents and their offspring uses _____ transmission.
a. horizontal
b. vertical
c. diagonal
d. vector
a. low exposure to the host's immune system - Correct Answers -Because of its
relationship with its host, the ectoparasite has
a. low exposure to the host's immune system.
b. low exposure to its natural enemies.
c. low exposure to the external environment.
d. difficulty moving between hosts.
c. Reservoir species do not die of the parasite and can be continuous source of the
parasite - Correct Answers -How do reservoir populations allow parasites to persist in
nature?
a. Reservoir species transmit the parasite more frequently than host species, so the
parasite infects a larger number of individuals.
b. Reservoir species are necessary for reproduction of the parasite.
c. Reservoir species do not die of the parasite and can be a continuous source of the
parasite.
d. Without the reservoir species, the parasite could not disperse from one host to
another.
a. resistant - Correct Answers -In S-I-R models of infectious disease transmission, R
represents _____ individuals.
a. resistant
b. recovered
, c. relocated
d. resilient
a. vector - Correct Answers -In the disease malaria, the Anopheles mosquito is the
a. vector.
b. reservoir species.
c. host.
d. parasite.
a. minimize harm that an infection can cause. - Correct Answers -Infection tolerance is
the ability of a host to
a. minimize harm that an infection can cause.
b. prevent infection by parasites.
c. prevent a parasite from reproducing.
d. recover from an existing infection.
d. vertical; horizontal - Correct Answers -The bacterium that causes chlamydia in
humans can be transmitted from mother to fetus by _____ transmission or between any
two individuals by _____ transmission.
a. horizontal; horizontal
b. vertical; vertical
c. horizontal; vertical
d. vertical; horizontal
a. spend more time out in the open. - Correct Answers -The parasitic worm
Acanthocephalus dirus has evolved an adaptation that causes its isopod host,
Caecidotea intermedius, to
a. spend more time out in the open.
b. be attracted to larger fish.
c. spend more time in refuges.
d. be scared of larger fish.
c. reducing the size of the susceptible population - Correct Answers -Vaccinations slow
or stop the spread of diseases by
a. reducing the virulence of the disease.
b. increasing the rate of recovery.
c. reducing the size of the susceptible population.
d. increasing the number of reservoirs.
c. emerging infection - Correct Answers -When a new disease is discovered, it is called
an _____ disease.
