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Subjects
Science State Board
Class 9
Environmental Science
Adaptation in plants, animals and conservation of water

13. Patagium, hibernation, echolocation

Exercise condition:

5 m.

Choose the best option:

[Note: There may be more than one answer for a question]

1. Which of the following statements is/are false regarding patagium?

It causes excessive absorption of the sun's rays during the day
It is an umbrella-like structure
It is a thick and black wing membrane
It is a thin and black wing membrane

2. Which of the following statements is/are false?

Hindlimbs of the bats are modified to serve as wings
Legs are small reducing mass and allows for flying
Legs supports and controls the movements during bat's flight
Forelimbs of the bats are modified to serve as wings

3. Which of the following is / are true regarding hibernation?

Hibernation is practiced when body increases activity to conserve energy
It is also called summer sleep
It is a state of inactivity where body temperature drops with a low metabolic rate during the winter
It is also called winter sleep

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