Tundra and Polar Ecosystems - Dayan A

Polar Ecosystems

100

True or False

Polar ecosystems are land based. (Rabbits, moss, grass…)

False. Ocean based.

200

Where is the ocean water saltier?

Towards the bottom

300

Where would autotrophs be found?

Towards the top of the water

400

What are some animal adaptations? 

- mammals and birds have fat for insulation

- many animals hibernate during the winter

- other animals migrate south in the winter

500

What is a reason why land animals would use sea ice?

- used as a bridge

- connects populations together , > genetic variety

Arctic and Antarctic Tundra

100

Does tundra soil have very little or a lot of nutrients?

Very little

200

True or False.

Plants are able to photosynthesize in low temperatures and low sunlight. (Arctic and Antarctic tundra)

True

300

What is the average summer temperature in the arctic tundra? 

3-12°C (37-54°F)

400

How many centimeters of soil thaws during the short summer?

8 cm

500

Why are plants often grouped together?

A. To increase diversity

B. To resist low temperatures

C. To make it easier for predators to find

B. To resist low temperatures

Alpine Tundra

100

Are alpine tundras found at low or high altitudes?

High altitudes