Order Ecological Disturbances Discussion Assignment

Order Ecological Disturbances Discussion Assignment
Order Ecological Disturbances Discussion Assignment
71. As shown in Figure 2.2, Jennifer has a classroom aquarium that
includes goldfish, various other species of fish, and some small
aquatic plants. She wants to increase the aquarium’s health, so
she adds some more plants to the tank. The plants provide more
dissolved oxygen and places for her fish to hide. As a result, her
goldfish population doubles in two months.
Which of the following statements is supported by this scenario?
(A) The turbidity of the tank was a limiting factor.
(B) The dissolved oxygen levels in the tank was a limiting factor.
(C) The size of her tank was a limiting factor.
(D) The amount of goldfish was a limiting factor.
 
72. In the aquarium scenario above, what would happen to the fish if all
of the plants suddenly died off and decomposition used up all of the
dissolved oxygen in the tank?
(A) A
(B) B
(C) C
(D) D
Living World: Biodiversity ❮ 41
 
73. A forest has a variety of trees and other plant species. The trees
provide shade to some plant species that do not like a lot of direct
sunlight. Using the preceding graph above, which section (A–D)
would have a decreasing abundance of plants due to having too
much direct sunlight (not enough shade coverage)?
(A) A
(B) B
(C) C
(D) D
 
74. In which section (A–D) would you find the highest biodiversity?
(A) A
(B) B
(C) C
(D) D
Order Ecological Disturbances Discussion Assignment
75. Ecosystems can be disrupted through natural forces such as volcanic
eruptions that destroy or cover up all the topsoil that plants need to
grow. When this happens, the underlying bedrock must be broken
down into soil over time by organisms that are suited for that harsh,
new environment. Over time, this breakdown will allow the soil to
be replenished and plants to come back to the area. What are these
first species that are established in a newly disturbed environment
called?
(A) invasive species
(B) keystone species
(C) primary species
(D) pioneer species
 
76. This is the final stage or the “end-stage” of ecological succession.
(A) primary community
(B) climax community
(C) end community
(D) resting community
42 ❯ 500 AP Environmental Science Questions to Know by Test Day
 
 
77. Which of the following ecological disturbances would be considered
to be anthropogenic?
(A) hurricane
(B) coastal flooding
(C) logging
(D) tsunami
Order Ecological Disturbances Discussion Assignment
78. Many ecosystems have evolved with fire as an essential component
of the health of that ecosystem. Many plant species in fire-affected
environments require fire to germinate seeds, clear out old growth,
and establish new seedlings. Which of the following biomes does not
need fire as a contributor to ecosystem renewal or seed germination?
(A) prairie
(B) savanna
(C) chaparral
(D) tropical rainforests
79. A tsunami is a series of great sea waves that can cause great
ecological destruction. Which of the following is LEAST likely the
cause of triggering a tsunami?
(A) earthquakes
(B) hurricanes
(C) volcanoes
(D) landslides
 
80. Only 5% of a population of lizards survive a major flood, and
by chance, the majority of survivors are green. If the original
population was composed mostly of brown individuals, then which
phenomenon has likely occurred?
(A) evolutionary divergence
(B) a bottleneck event
(C) parallel evolution
(D) natural selection
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