UNH Biology 412 Final Exam Study Guide 2022 with complete solution
The maximum number of individuals of a given population the environment can support is the environment's _____ for that population.
A.carrying capaci
...
UNH Biology 412 Final Exam Study Guide 2022 with complete solution
The maximum number of individuals of a given population the environment can support is the environment's _____ for that population.
A.carrying capacity
B.effect on the intrinsic growth rate
C.population size
D.effect on the exponential growth rate -Answer- Carrying Capacity
A severe drought is an example of a density-_____ factor that can influence population size. The availability of nest sites is an example of a density-_____ factor.
A.dependent; independent
B.independent; dependent
C.dependent; dependent
D.independent; independent -Answer- independent; dependent
When a population is small relative to its carrying capacity, its growth will be:
A.geometric.
B.exponential.
C.logistic.
D.both geometric and exponential.E.both geometric and logistic. -Answer- exponential
A scientist is studying a population of kangaroo rats in the southwestern deserts of the United States. For approximately 4 years the population remains at or near 125 individuals. In the fifth year, it falls to 30. This sharp decrease in population size is most likely the result of density-_____ factors.
A.dependent
B.independent -Answer- independent
The term (ΔN/N0)/Δt (where N denotes the size of a population and t represents time) is used to calculate:
A.a habitat's carrying capacity.
B.the "available" percentage of a habitat's carrying capacity.
C.a population's density.
D.a population's specific growth rate. -Answer- a population's specific growth rate
The common mud turtle experiences relatively uniform mortality rates throughout its life. It exhibits Type _____ survivorship.
A.I
B.II
C.III -Answer- II
____ is the proportion of individuals of an initial cohort that survives to each successive age or stage of the life cycle.
A.Survivorship
B.Mortality
C.Age structure
D.Demography -Answer- Survivorship
A large population made up of smaller populations linked by migration is a:
A.colonization.
B.island founder event.
C.metapopulation.
D.habitat patch. -Answer- metapopulation
Both the land area (size) of an island and the _____ contribute to species diversity.
A.depth of the water surrounding the island
B.distance of the island from neighboring land masses
C.rock composition of the island
D.climate of the island
E.proximity of the island to the equator -Answer- distance of the island from neighboring land masses
A group of biologists want to estimate a population of beetles living in an area around a pond. They capture and mark 500 beetles, then release them on the first day. They return the following day and catch a total of 400 individuals, 200 of which are marked. What is the estimated population size for the beetles?
A.10,000
B.1000
C.500
D.250 -Answer- 1,000
The coast redwood (Sequoia sempervirens) occurs naturally in a strip of habitat about 450 miles long and 5-35 miles wide, from southwest Oregon along the coast to just south of Monterey, California. What aspect of the population ecology of the coast redwood does this statement describe?
A.geographic range
B.population density
C.population size
D.type of distribution -Answer- geographic range
Prairie dogs are rodents that live in colonies. Black-tailed prairie dog (Cynomys ludovicianus) colonies typically have around 12 adult animals per hectare. What aspect of the population ecology of the black-tailed prairie dog does this statement describe?
A.population density
B.population size
C.population growth
D.life history -Answer- population density
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