12 Jun More water is held in lakes and rivers than
Question
Question 16
Which of the following will NOT promote speciation?
a. natural selection
b. gamete differences
c. seasonal fertility
d. gene flow
e. habitat fission
1 points
Question 17
More water is held in lakes and rivers than in
a. oceans
b. polar ice and glaciers
c. atmospheric water vapor
d. none of the above
1 points
Question 18
Decomposers
a. are able to enter a food chain at any trophic level
b. feed on organic wastes
c. include bacteria and fungi
d. all of these
1 points
Question 19
Select the exception concerning populations
a. distribution
b. age structure
c. density
d. size
e. habitat
1 points
Question 20
Disruptive selection:
a. eliminates uncommon forms of alleles
b. shifts allele frequencies in one consistent direction
c. doesn’t favor intermediate forms of a trait
d. both b and c
1 points
Question 21
The maximum number of individuals in a population that can be sustained indefinitely by the resources in a given environment is the:
a. biotic potential
b. environmental resistance
c. carrying capacity
d. trophic level
1 points
Question 22
Which statement is the best description of the relationship between environmentalism and ecology?
a. Ecology and environmentalism are exactly the same.
b. Environmentalism is more important than ecology.
c. Environmentalist seek to become ecologists.
d. Environmentalists utilize information from ecological studies to draw attention to particular environmental concerns.
e. None of these answers.
1 points
Question 23
Population size depends upon:
a. deaths
b. births
c. emigration
d. immigration
e. all of the above
1 points
Question 24
Four of the five pairs listed below show analogy. Select the exception.
a. wings of pigeons and insects
b. flippers of dolphins and penguins
c. flippers of whales, fins of sharks
d. wings of pigeons and flippers of penguins
e. wings of pigeons and bats
1 points
Question 25
Capture-recapture is a good way to estimate the population size because
a. it can be used to infer the reproductive traits for the entire population
b. it can single out the marked individual for remarking
c. it can show the migratory patterns for the entire population
d. it is not a useful tool
e. it can be used to infer the properties of the entire population
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