Give names of two animals which are found as parasites inside the human intestine.
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.
Name two cells which are found in animals and two which are found in plants.
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.