Survival at 40 Below

What adaptation helps caribou survive the harsh winter conditions?

• They grow longer legs.
• They gain a thick layer of fat.
• They change color.
• They migrate to warmer areas.

How do beavers prepare for winter?

• By cutting saplings to store food underwater.
• By hibernating in their lodges.
• By migrating to warmer areas.
• By building larger dams.

How do wood frogs survive freezing temperatures?

• By migrating to warmer climates.
• By producing glucose to protect their cells.
• By growing thicker skin.
• By hibernating in the ground.

Which of the following adaptations helps the arctic fox stay warm?

• It has two winter coats.
• It has a thick layer of fat.
• It builds large dens.
• It hibernates during winter.

What is the lowest temperature recorded in the Arctic as mentioned in the text?

• 50 below zero.
• 40 below zero.
• 20 below zero.
• 30 below zero.

What must the black-capped chickadee do each day to survive the night?

• Find a mate.
• Fly south.
• Gain enough fat.
• Build a nest.

Which of the following best describes how chickadees generate heat in cold weather?

• By eating more food.
• By fluffing up their feathers and shivering.
• By migrating to warmer areas.
• By building nests.

What do caribou forage on during winter to survive?

• Bark from trees.
• Moss.
• Lichens.
• Grass.

What is the primary purpose of the circular wall formed by musk oxen?

• To keep warm during winter.
• To protect themselves from wolves.
• To find food.
• To attract mates.

What unique ability does the woolly bear caterpillar have?

• It can change color to blend in.
• It can produce its own food.
• It can fly long distances.
• It can survive being frozen for months.