A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: A
Solution :
Pila has an important mechanism to undergo summer sleep or aestivation. Pila has a shell house, while moving and feeding, it does not leave the shell house but carries it on its back. Sensing any danger, it immediately retreats into the shell and shuts the aperture with the operculum of lid attached to its foot. Snail may tide over long periods of drought by remaining torpid (sluggish) with the shell aperture tightly closed. It is then said to be in summer sleep or aestivation, During rains, it leaves the ponds and makes long excursions on land breathing air directly through a pulmonary chamber.
You need to login to perform this action.
You will be redirected in
3 sec
