Answers26-27 - C - RUSD Environmental Science S1The Chaparral

The Tundra Answers

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1
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The large size of the musk ox _______.

A
helps minimize heat loss
B
is offset by its long legs
C
helps the animal graze less often
D
helps maximize heat loss
2
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Which of the following statements about the tundra is true?

A
The tundra has a dense covering of trees.
B
There are two main categories of the tundra biome.
C
Temperatures in the tundra range from extreme highs to extreme lows.
D
The tundra biome does not support animal life.
3

What is the main difference between the alpine tundra and the arctic tundra?

A
The alpine tundra includes trees.
B
The alpine tundra occurs on mountaintops.
C
The alpine tundra has no animal life.
D
The alpine tundra has lower temperatures.
4

What characteristic about the tundra biome listed below does not contribute to a reduction of carbon dioxide on Earth?

A
nutrient-poor soil
B
permafrost
C
plants and their trapped carbon dioxide are frozen in the earth
D
carbon dioxide sink
5

Fish do not live in the icy rivers of the tundra.

A
T
B
F
6

Animals in the tundra struggle to find food and keep warm.

A
T
B
F
7

Organisms that live in the tundra biomes have developed unique adaptations that aid in their survival. The Labrador tea plant is a shrub that grows to be approximately five feet tall. Its leaves are used by human residents of the Arctic tundra to create both beverages and medicine. The leaves are harvested from each plant individually off the branches throughout the year. How has the Labrador tea plant adapted to enable its survival against the cold of the tundra biome?

A
shallow roots
B
dense hairs
C
retention of dead leaves
D
low to the ground
8

Even though the tundra has an extremely cold climate, it can still support life.

A
T
B
F
9

Which of the following plants is not found in the tundra?

A
caribou moss
B
lousewort
C
bearberry
D
ocotillo
10

What is the purpose of the dense hairs around the flowers of the woolly lousewort?

A
The dense hairs keep moisture off the flower.
B
The dense hairs trap heat from the sun.
C
The dense hairs protect the flower from caribou.
D
The dense hairs keep the flower’s seeds from blowing away.
11

What type of vegetation is not frequently found in the tundra?

A
mosses
B
shrubs
C
lichens
D
trees
12

The tundra is located _______.

A
north of the equator
B
south of the equator
C
along the equator
D
both north and south of the equator
13

Why is there limited vegetation in the tundra?

A
The soil is frozen and devoid of nutrients.
B
There is frequent flooding and the soil is nutrient-poor.
C
There is frequent flooding and the soil is nutrient-rich.
D
The soil is frozen and contains pockets rich in nutrients.
14

Which of the following animals has fur that changes color with the season?

A
polar bear
B
arctic fox
C
wolverine
D
lynx
15

This is the world’s coldest biome. It receives only 6-10 inches of precipitation per year and has a permanently frozen layer of earth called permafrost. The soil is nutrient-poor with very little vegetation.

A
taiga
B
tundra
C
deciduous forest
D
alpine
16

Organisms that live in the tundra biome have developed unique adaptations that aid in their survival. Which of the following adaptations is not seen in the tundra bumblebee?

A
Its body is covered in dense hairs that help it conserve heat.
B
It is active only under warm conditions.
C
It can “shiver” to generate heat.
D
It is able to keep its body temperature approximately 75ºF above ambient temperature.
17

Organisms that live in the tundra have developed unique adaptations that aid in their survival. Ursus maritimus has a variety of adaptations which enable it to survive in the tundra. It is the largest terrestrial carnivore, but it is also an excellent swimmer that spends much of its time in and near the water hunting its favorite food. It has large paws with small bumps to provide traction as it walks across the ice. Its fur is helpful as camouflage during the winter months, but not as helpful during the summer. Which organism has the adaptations described that enable it to survive in the tundra?

A
harp seal
B
arctic fox
C
polar bear
D
Kodiak bear
18

Which of the following is an adaptation to permafrost?

A
retention of dead leaves
B
dense hairs
C
shallow roots
D
waxy leaves

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