Answers26-27 - C - RUSD Environmental Science S1Freshwater and Marine Biomes

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Which of the following attributes is characteristic of savannas but not of grasslands?

A
burrowing animals
B
droughts and fires
C
shrubs and isolated trees
D
a large number of grazing animals
2
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Which of the following did not allow researchers to further explore below the ocean’s surface?

A
ROV’s
B
Alvin
C
Palomares
D
Bathysphere
3

Which of the following plant adaptations aids savanna plants during droughts?

A
spines
B
water storage
C
growth patterns
D
bitter taste
4

Which of the following adaptations is typical of marine mammals?

A
thick layer of blubber
B
body covered in thick fur
C
webbed hands and feet
D
breathing apparatus on the sides of the head
5

Vines most successfully compete for sunlight in tropical rainforests by _______.

A
climbing up into the canopy
B
strangling the trees they grow on
C
having broader leaves that absorb more light
D
having thick, woody stems
6

Which of the following is a characteristic differentiating tropical and temperate rainforests?

A
the location
B
the types of trees
C
the average temperature
D
all of the answers are correct
7

Which of the following adaptations enables deciduous trees to produce more food?

A
thick bark
B
stretching toward the sun
C
leaf loss
D
color change
8

Deciduous forests can only be found in North America.

A
T
B
F
9

The marine biome _______.

A
is a large ecosystem, but not larger than some terrestrial ecosystems
B
is characterized by four different zones
C
has little species diversity
D
covers a small portion of the Earth’s surface
10

Which of the following changes in deciduous forests occurs in the winter?

A
Trees regain their leaves.
B
Trees block the flow of water and nutrients to their leaves.
C
The leaves of trees begin to lose their chlorophyll.
D
Trees live off of stored nutrients.
11

Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the following adaptations would be more useful for an animal in a marine biome than for an animal in a freshwater biome?

A
flippers and flattened tails
B
smooth, nearly furless body
C
streamlined body
D
tolerance to high levels of salinity
14

The plentiful nature of resources in the tropical rainforest reduces competition for them.

A
T
B
F
16

Organisms that live in the savanna and grassland biomes have developed unique adaptations that aid in their survival. Which of the following organisms is most likely to be found in a grassland?

A
a bird that nests in trees
B
an animal that burrows
C
a large predatory cat
D
an animal not adapted to cold temperatures
20

Savannas are _______.

A
located only in Africa
B
characterized by four distinct seasons
C
lacking diverse animal life
D
between tropical rainforests and deserts
23

The amount and type of precipitation in temperate rainforests is the same as tropical rainforests.

A
T
B
F
24

Waste disposal, food source, medicines, medicinal therapies, and aquaculture are all ways _______.

A
humans impact the marine environment
B
humans utilize marine resources
C
marine environments have impacted humans
D
all of the above
25

Organisms that live in the rainforest have developed unique adaptations that aid in their survival. The greater yellow-headed vulture is found in undisturbed lowland tropical forests of the Amazon basin. It tracks down carrion to feed on by detecting the production of ethyl mercaptan, a gas that is produced at the beginning of animal decay. Photo by Sidnei Dantas Which adaptation might be found in the greater yellow-headed vulture, but not in the harpy eagle?

Question illustration
A
acute sense of smell
B
a powerful, hooked bill
C
close-set eyes to judge distances
D
short wingspan for maneuverability
26

Which of the following about the copperhead snake is true?

A
The copperhead snake is one of six venomous species in North America.
B
Copperhead snakes average 4.5 feet in length.
C
Copperhead snakes are not camouflaged.
D
Copperhead snakes detect heat given off by potential prey.
27

Grasslands never have trees.

A
T
B
F
28

If the number of trees on earth continues to decrease significantly, what might be the result?

A
less oxygen released into the atmosphere and more CO2 buildup; erosion could occur without the tree roots to hold the earth in place; loss of habitat of many animals and diversity could decrease
B
balance of nitrogen and phosphorus in the ecosystem and the movement of water through the ecosystem could be thrown out of balance
C
a and b
D
none of the above

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