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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 true regarding bats?
They are the only mammals that are capable of flight
Bats are active at day
Bats reduce insect population
Bats are active at night
2
.
Which of the following statements is/are false?
Fore limbs tendons help provide a tight grip
Muscles of the bat are well developed and highly powerful
The forelimbs of the bat are modified for its flight
The hindlimbs of the bat are modified for its flight
3
.
Which of the following is / are true regarding hibernation?
It is also called winter sleep
It is a state of inactivity where body temperature drops with a low metabolic rate during the winter
Hibernation is practiced when body increases activity to conserve energy
It is also called summer sleep
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