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BIOL 252 Human Anatomy & Physiology II w/Lab
| Module 8 Exam Review 270+ Questions and
Answers (100% Verified).
Two species of birds feed on mistletoe berries. The birds are active at different times of the day and do not come
into contact with one another. Nonetheless, the presence of one species limits the survival and reproduction of
the other. What type of competition is this?
A. interference
B. exploitation
C. allelopathy
D. intraspecific - B
Which of the types of functional responses in the graph to the right is assumed by the Lotka-Volterra model?
A. Type I
B. Type II
C. Type III
D. none of those shown here - A
Which statement about mycorrhizae is true?
A. although mycorrhizae are very common in angiosperms, most gymnosperms do not form these associations
B. mycorrhizae are symbiotic associations between plant roots and fungi
C. mycorrhizae typically are commensalisms, not true mutualisms, because only the plant benefits
D. plants cannot control allocation of carbon to particular hyphae, so that energy is wasted on hyphae that don't
contribute much to the plant - B
, Page |2
Thies and Tscharntke (1999) found that biological control of beetle pests of oil rapeseed, an economically
important crop, was more effective when non-crop habitats that provided food and shelter for the control agent
(a wasp) were widely available. This result demonstrates the importance of
A. landscape connectivity
B. landscape context
C. habitat corridors
D. matrix permeability - B
Which of the following was a finding of Connell's experiments with intertidal barnacles in Sctoland?
A. for both species, the extent of the distribution of larvae was greater than that of adults
B. one species was excluded from the top of the intertidal zone due to sensitivity to dessication
C. one species was excluded from the lower intertidal zone due to competition with the other species
D. all of the above - D
A key outcome of the Lotka Volterra competition models is that two species can coexist if
A. interspecific competition is stronger than intraspecific competition
B. a12 is greater than a21 (=B)
C. a12 and a21 (=B) are both much lower than 1
D. both species have the same carrying capacity - C
A population at the zero population growth isocline is
A. increasing in size via exponential growth
B. stable in size
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C. decreasing in size
D. increasing in size via logistic growth - B
Which of the following would NOT be an example of an edge effect associated with forest fragmentation?
A. higher air temperatures, wind speeds and light penetration
B. higher rates of nest predation and nest parasitism for birds
C. increased abundance of disturbance-adapated plants and insects
D. smaller population sizes of interior-sensitive species - D
The population dynamics of metapopulations differ from those of "traditional" populations in that
A. dispersal, not individuals births and deaths, drive dynamics
B. the rate of colonization must exceed that of extinction for regional persistence
C. asynchrony among subpopulations prevents regional extinction by spreading risk
D. all of the above - D
In the Lotka-Volterra predator-prey model, an increase in capture efficiency should lead to _____ in the long-
term average number of predators and _____ in the long-term average number of prey.
A. an increase; a decrease
B. an increase; no change
C. a decrease; an increase
D. a decrease; no change - A
the tendency for high rates of immigration, e.g. due to close proximity to large patches, to protect populations
from extinction - rescue effect
, Page |4
an insect that lays one or a few eggs on or in a host, which the resulting larvae remain with, eat and usually kill
- parasitoid
one-way movement of an individual or propagule away from its home range or location of birth -
dispersal
the type of functional response typically associated with prey-switching by a generalist predator - Type
III
the combination of conditions and resources that allows a species to persist, grow and reproduce; or its
functional role in a community - fundamental niche
type of species interaction in which one species benefits and the second species is unaffected -
commensalism
a relatively narrow patch between two blocks of habitat that may facilitate movement between the blocks -
habitat corridor
a species that, by its effects on the physical environment, alters habitat and resources for other species and
ecosystem functioning - ecosystem engineer
if two competing species coexist in a stable environment, they do so as a result of niche differentiation;
otherwise, one will exclude the other - competitive exclusion principle
Why are the testes external to the body? - Needs to be a cooler temperature for proper sperm
development. Since sperm are created at puberty they must be kept separate from body or else immune system
would destroy them
What are the hormonal and non hormonal roles of the sertoli cells - -supplies nourishment to developing
sperm during spermatogenesis
-creates barrier between sperm and rest of the body
BIOL 252 Human Anatomy & Physiology II w/Lab
| Module 8 Exam Review 270+ Questions and
Answers (100% Verified).
Two species of birds feed on mistletoe berries. The birds are active at different times of the day and do not come
into contact with one another. Nonetheless, the presence of one species limits the survival and reproduction of
the other. What type of competition is this?
A. interference
B. exploitation
C. allelopathy
D. intraspecific - B
Which of the types of functional responses in the graph to the right is assumed by the Lotka-Volterra model?
A. Type I
B. Type II
C. Type III
D. none of those shown here - A
Which statement about mycorrhizae is true?
A. although mycorrhizae are very common in angiosperms, most gymnosperms do not form these associations
B. mycorrhizae are symbiotic associations between plant roots and fungi
C. mycorrhizae typically are commensalisms, not true mutualisms, because only the plant benefits
D. plants cannot control allocation of carbon to particular hyphae, so that energy is wasted on hyphae that don't
contribute much to the plant - B
, Page |2
Thies and Tscharntke (1999) found that biological control of beetle pests of oil rapeseed, an economically
important crop, was more effective when non-crop habitats that provided food and shelter for the control agent
(a wasp) were widely available. This result demonstrates the importance of
A. landscape connectivity
B. landscape context
C. habitat corridors
D. matrix permeability - B
Which of the following was a finding of Connell's experiments with intertidal barnacles in Sctoland?
A. for both species, the extent of the distribution of larvae was greater than that of adults
B. one species was excluded from the top of the intertidal zone due to sensitivity to dessication
C. one species was excluded from the lower intertidal zone due to competition with the other species
D. all of the above - D
A key outcome of the Lotka Volterra competition models is that two species can coexist if
A. interspecific competition is stronger than intraspecific competition
B. a12 is greater than a21 (=B)
C. a12 and a21 (=B) are both much lower than 1
D. both species have the same carrying capacity - C
A population at the zero population growth isocline is
A. increasing in size via exponential growth
B. stable in size
, Page |3
C. decreasing in size
D. increasing in size via logistic growth - B
Which of the following would NOT be an example of an edge effect associated with forest fragmentation?
A. higher air temperatures, wind speeds and light penetration
B. higher rates of nest predation and nest parasitism for birds
C. increased abundance of disturbance-adapated plants and insects
D. smaller population sizes of interior-sensitive species - D
The population dynamics of metapopulations differ from those of "traditional" populations in that
A. dispersal, not individuals births and deaths, drive dynamics
B. the rate of colonization must exceed that of extinction for regional persistence
C. asynchrony among subpopulations prevents regional extinction by spreading risk
D. all of the above - D
In the Lotka-Volterra predator-prey model, an increase in capture efficiency should lead to _____ in the long-
term average number of predators and _____ in the long-term average number of prey.
A. an increase; a decrease
B. an increase; no change
C. a decrease; an increase
D. a decrease; no change - A
the tendency for high rates of immigration, e.g. due to close proximity to large patches, to protect populations
from extinction - rescue effect
, Page |4
an insect that lays one or a few eggs on or in a host, which the resulting larvae remain with, eat and usually kill
- parasitoid
one-way movement of an individual or propagule away from its home range or location of birth -
dispersal
the type of functional response typically associated with prey-switching by a generalist predator - Type
III
the combination of conditions and resources that allows a species to persist, grow and reproduce; or its
functional role in a community - fundamental niche
type of species interaction in which one species benefits and the second species is unaffected -
commensalism
a relatively narrow patch between two blocks of habitat that may facilitate movement between the blocks -
habitat corridor
a species that, by its effects on the physical environment, alters habitat and resources for other species and
ecosystem functioning - ecosystem engineer
if two competing species coexist in a stable environment, they do so as a result of niche differentiation;
otherwise, one will exclude the other - competitive exclusion principle
Why are the testes external to the body? - Needs to be a cooler temperature for proper sperm
development. Since sperm are created at puberty they must be kept separate from body or else immune system
would destroy them
What are the hormonal and non hormonal roles of the sertoli cells - -supplies nourishment to developing
sperm during spermatogenesis
-creates barrier between sperm and rest of the body
