X is a wild animal which eats only the flesh of other animals whereas Y is a domestic animal which feeds mainly on green grass.
(a) What are animals like X known as ?
(b) What are animals like Y known as ?
(c) Which animal, X or Y, has a longer small intestine ? Why ?
(d) Name one animal which is like X.
(e) Name one animal which is like Y.

X and Y are the two types of animals. The animals like X undergo external fertilisation whereas animals like Y undergo internal fertilisation. The animals like X lay eggs from which baby animals are hatched. On the other hand, in animals like Y, the young one develops inside the uterus of mother which then gives birth to the baby.

(a) What is the general name of animals like X ?

(b) Give two examples of animals like X.

(c) What is the general name of animals like Y ?

(d) Write the names of two animals like Y.

The species P and Q of wild animals are found exclusively in a 'particular area'. The species R of wild animals is listed in Red data book of India whereas species S of wild animals no longer exists anywhere on the earth.
(a) What name is given to species like P and Q?
(b) What are the species like R known as?
(c) Name one species like R.
(d) What is the special name of species like S?
(e) Name one species like S.