Succession — Cumulative exam Answers

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1
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Energy must be transformed in ecosystems because _______.

A
energy cannot be created or destroyed
B
an organism’s energy must go somewhere
C
an organism’s energy must come from somewhere
D
all of the above
2
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What kind of vegetation would you most likely expect to find in the chaparral biome?

A
deciduous trees
B
tall grasses
C
hardy shrubs
D
tall pine trees
4

Temperatures in the tundra range from extreme highs to extreme lows.

A
T
B
F
5

Succession is _______.

A
harmful to ecosystems
B
a natural recovery process
C
unnecessary for ecosystem recovery
D
a one-time event
6

If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely __________.

A
be eliminated
B
increase
C
decrease
D
remain the same
7

Why do deciduous trees lose their leaves?

A
Deciduous trees lose their leaves to prevent oxygen loss.
B
Deciduous trees lose their leaves to defend from predators.
C
Deciduous trees lose their leaves to prevent nutrient and water loss.
D
Deciduous trees die in winter.
8

Which of the following is not a method to determine population size?

A
mark/recapture
B
sampling
C
hypothesis
D
observation
9

Why is phytoplankton located near the ocean’s surface?

A
It cannot live in areas of high salinity.
B
It can more easily evade predators on the oceans’s surface.
C
It needs access to oxygen only found at the ocean’s surface.
D
It needs sunlight to survive.
10

Competitive exclusion controls population size.

A
T
B
F
11

Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. The snowshoe rabbit is one of the animals found in the taiga biome. It is unique in that it is able to hide from predators in the snow in the winter, as well as in the forested areas in the summer without being seen. Photo by USDA Photo by David Adamec Which of the snowshoe rabbit’s unique adaptations help it to survive predation in the taiga?

Question illustration
A
hibernation
B
migration
C
seasonal color changes
D
insulating fur and feathers
12

Which of the following is not a career in environmental science?

A
Hydrologist
B
Toxicologist
C
Physiologist
D
Ecologist
13

Which of the following is true about grasslands?

A
They have numerous trees.
B
They have a large number of tree-dwelling birds.
C
They experience a wide temperature range over two seasons.
D
They have four distinct seasons.
14

Which of the following is not a part of Earth’s system?

A
hydrosphere
B
geosphere
C
biosphere
D
chronosphere
15

Why has the spread of the herbicide-resistant hydrilla through Florida’s waterways resulted in them no longer being navigable by most boats?

A
Thy hydrilla has induced a drought that drained the waterways.
B
The weed clogs propellers that boats use for propulsion.
C
The sticky leaves of the weed hold boats in place.
D
All of the above
16

Carnivores have sharp, pointed teeth that allow them to tear flesh from prey. What type of adaptation is this?

A
Behavior
B
Biochemical
C
Physiological
D
Ecological
18

The diet of leaf-cutter ants is principally _______.

A
leaves
B
fungus
C
saliva-coated leaves
D
fungus-treated leaves
19

Yellowstone National Park has 124 wolves living in it. The park covers 3472 square miles. What is the population density of wolves living in Yellowstone?

Question illustration
A
28 wolves/mi
B
0.0357 wolves/mi
C
82 wolves/mi
D
43 wolves/mi
20

Which of the following is not a characteristic of the rainforest biome?

A
high year-round rainfall
B
consistent year-round temperatures
C
wide diversity of plant and animal species
D
always found along coasts

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