Bat is mammal because it _____.

Select the correct statements about elephant herd

I. An elephant herd has mainly females and baby elephants upto 14-15 years old.

II. An elephant herd comprises members of a particular family.

III. The oldest female is the leader of the herd.

IV. An elephant herd may accommodate any number of female elephant and the young ones.

Which of the statements given above are correct?

Select the true statements from the  following. 

I. Elephants love to play with muddy water as it keeps their skin cool.

II. Most elephants like to take rest and sleep nearly 10 hr a day.

III. A 3 months old elephant weights about 200 pound

IV. Most adult elephants eat about 100 kg of leaves/twigs in 1 day.

Which of the statements given above are Correct ?

Here in figure I, a 24 hour clock is shown and in figure II and figure III, sleeping times of two animals X and Y are shown by shaded
portions. 

Select the correct statement about the sleeping times of X and Y.

Select the correct statements from the following.

I. Animals that have outside ears and hair on their body give birth to the youngones.

II. Animals that do not have outside ears and hair on their body lay eggs.

III. Animals that do not have outside ears and hair on their body give birth to the young ones.

IV. Animals that have outside ears and hair on their body lay eggs.

Which of the statements given above are correct?