Adaptations to Cold Environments

What happens to the reactions required for life at low temperatures?

• They speed up

• They slow or stop

• They become more efficient

• They produce more energy

How do high winds affect heat loss by organisms in cold environments?

• They reduce heat loss

• They have no effect on heat loss

• They significantly increase heat lost

• They help organisms retain heat

What is one of the challenges organisms face with snow precipitation?

• Finding liquid water

• Finding food

• Finding shelter

• Finding heat

Which of the following is a structural adaptation to cold environments?

• Thin skin

• Large ears

• Thick insulating layer

• Long legs

How do animals in cold environments minimize heat loss?

• By increasing their body temperature

• By increasing their surface area to volume ratio

• By decreasing their surface area to volume ratio

• By decreasing their body temperature

What is the purpose of animals curling into a ball?

• To reduce heat loss

• To increase speed

• To attract mates

• To find food

What is the main benefit of animals huddling together?

• Reducing heat loss

• Finding food

• Avoiding predators

• Increasing social bonds

Migrating to a warmer climate is an example of:

• Physical adaptation

• Behavioral adaptation

• Structural adaptation

• Genetic adaptation

Which of the following behaviors helps animals stay warm by reducing exposed surface area?

• Huddling

• Shedding fur

• Changing diet

• Increasing body size

What happens to cell membranes at low temperatures if lipid unsaturation is not increased?

• They become more fluid

• They become less fluid

• They become more permeable

• They become less permeable