Answers 26-27 - C - RUSD Environmental Science S1The Chaparral

The Tundra Answers

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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?

shallow roots

dense hairs

retention of dead leaves

low to the ground

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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?

Its body is covered in dense hairs that help it conserve heat.

It is active only under warm conditions.

It can “shiver” to generate heat.

It is able to keep its body temperature approximately 75ºF above ambient temperature.

Which of the following statements about the tundra is true?

The tundra has a dense covering of trees.

There are two main categories of the tundra biome.

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

The tundra biome does not support animal life.

Why is there limited vegetation in the tundra?

The soil is frozen and devoid of nutrients.

There is frequent flooding and the soil is nutrient-poor.

There is frequent flooding and the soil is nutrient-rich.

The soil is frozen and contains pockets rich in nutrients.

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

The dense hairs keep moisture off the flower.

The dense hairs trap heat from the sun.

The dense hairs protect the flower from caribou.

The dense hairs keep the flower’s seeds from blowing away.

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

The tundra is located _______.

north of the equator

south of the equator

along the equator

both north and south of the equator

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

The alpine tundra includes trees.

The alpine tundra occurs on mountaintops.

The alpine tundra has no animal life.

The alpine tundra has lower temperatures.

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

mosses

shrubs

lichens

trees

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

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

The large size of the musk ox _______.

helps minimize heat loss

is offset by its long legs

helps the animal graze less often

helps maximize heat loss

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

nutrient-poor soil

permafrost

plants and their trapped carbon dioxide are frozen in the earth

carbon dioxide sink

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?

harp seal

arctic fox

polar bear

Kodiak bear

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

mosses

shrubs

lichens

trees

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

The alpine tundra includes trees.

The alpine tundra occurs on mountaintops.

The alpine tundra has no animal life.

The alpine tundra has lower temperatures.

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

caribou moss

lousewort

bearberry

ocotillo

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.

taiga

tundra

deciduous forest

alpine