Buy Elements Of an Organism’s Habitat Discussion

Buy Elements Of an Organism’s Habitat Discussion
Buy Elements Of an Organism’s Habitat Discussion
61. All of the following are elements of an organism’s habitat
(A) food
(B) water
(C) shelter
(D) reproductive strategy
Living World: Biodiversity ❮ 37
Regulating: Supporting: Cultural: Provisioning:
Climate, Air
Quality, Soil
Cycles (Water,
Ethics and
access to
fresh water,
fuel, fibers,
and food
Figure 2.1
Buy Elements Of an Organism’s Habitat Discussion
62. Ecosystem services are the important benefits to humans that arise
from healthy, functioning ecosystems. Ecosystems can be essential to
human mental and physical health and survival. Using Figure 2.1 as
a guide, under which category would you place whitewater rafting
down the Colorado River?
(A) regulating
(B) supporting
(C) cultural
(D) provisioning
63. A population of island birds has a very homogeneous genetic pool.
Which of the following can result in greater genetic diversity?
(A) a small number of birds leaving to start a new colony
(B) a bottleneck event
(C) genetic drift
(D) inbreeding
38 ❯ 500 AP Environmental Science Questions to Know by Test Day
64. A new island is colonized by a small number of mice that
occasionally trade members with mainland mice when the receding
tide reveals a land bridge between the two. This is an example of
(A) a bottleneck event
(B) a metapopulation
(C) the founder effect
(D) genetic drift
65. A species is most likely to go extinct in a changing environment if
it has
(A) high genetic diversity
(B) a large niche
(C) a narrow niche
(D) recent evolutionary adaptations
Buy Elements Of an Organism’s Habitat Discussion
66. Coastal beaches and barrier islands are eroded by
(A) jetties
(B) percolation
(C) longshore currents
(D) compaction
67. Which of the following is correct regarding island biogeography?
(A) Smaller islands have more species richness.
(B) The smallest islands have the fewest resources due to less
habitat area.
(C) Larger islands have less species richness due to more
competition for resources.
(D) Larger islands would have fewer resources than smaller islands.
Living World: Biodiversity ❮ 39
68. According to the island biogeography equilibrium model, if you
look at two islands that are the same size, but one is 10 miles away
from the mainland and one is 100 miles away from the mainland,
which island will have the higher immigration rate?
a. The closest island will have a higher immigration rate.
b. The furthest island will have a higher immigration rate.
c. Immigration rate will depend on the size of the island.
(A) a only
(B) b only
(C) c only
(D) a and c
69. Your environmental consulting company has been hired by the
U.S. government to determine what type of islands are the most
desirable to save native plants and animals that may migrate from
the mainland. Which island would be best to invest your time in
protecting to save the most biodiversity?
(A) islands that are near the mainland and small in size
(B) islands that are near the mainland and large in size
(C) islands that are far away from the mainland and small in size
(D) islands that are far away from the original population and larger
in size
70. There are two types of main habitat niches in ecosystems. A
fundamental niche represents all the environmental conditions (both
abiotic and biotic) in which a species can live. The organism can
occupy the niche without competition from other species or pressure
from predators. When an organism has competition for food or
breeding partners or if predators appear in the area, the niche will
narrow. What is the term for the habitat niche an organism will hold
when faced with environmental pressures, such as competition or
(A) actual niche
(B) competitive advantage
(C) competitive exclusion
(D) realized niche
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