Adaptations, interdependence and competition Quiz

1. Which of the following is an example of a structural adaptation?

• A. A camel storing fat in its hump to survive periods without food
• B. A penguin having a streamlined body shape for swimming
• C. A desert plant closing its stomata during the day to reduce water loss
• D. A bird migrating to warmer climates during winter

2. How does a thick layer of blubber in arctic animals increase their chances of survival?

• A. It allows them to store energy and provides insulation against heat loss
• B. It prevents them from sinking in water
• C. It reduces their need to hunt for food
• D. It increases their swimming speed

3. A desert plant has very small leaves and a deep root system. Which statement best explains how these adaptations increase survival?

• A. Small leaves reduce surface area for water loss; deep roots access water deep underground
• B. Small leaves increase photosynthesis; deep roots provide support
• C. Small leaves reduce the need for photosynthesis; deep roots store water
• D. Small leaves prevent animals from eating them; deep roots anchor the plant

4. Why do larger animals generally have a smaller surface area to volume ratio than smaller animals?

• A. They have thicker skin which reduces their total surface area
• B. Surface area increases with the square of length, whilst volume increases with the cube of length
• C. Larger animals do not need to exchange heat with their environment
• D. Larger animals have more efficient heating systems

5. A deep-sea fish has a large mouth, expandable stomach, and bioluminescent lures. Which adaptation allows it to locate food in complete darkness where food is scarce?

• A. The large mouth and expandable stomach
• B. The bioluminescent lure
• C. All three adaptations work together equally
• D. None of these adaptations help locate food