Chapter 9 : Reproduction in Animals

1.Sets of reproductive terms are given below. Choose the set that has an incorrect combination.
(a)sperm, testis, sperm duct, penis
(b)menstruation, egg, oviduct, uterus
(c) sperm, oviduct, egg, uterus
(d)ovulation, egg, oviduct, uterus
2.In humans, the development of fertilised egg takes place in the
(a)ovary  (b)testis (c)oviduct (d)uterus
3.In the list of animals given below, hen is the odd one out. ‘‘ human being, cow, dog, hen ’’
The reason for this is
(a)it undergoes internal fertilisation.
(b)it is oviparous.
(c)it is viviparous.
(d)it undergoes external fertilisation.

4.Animals exhibiting external fertilisation produce a large number of gametes. Pick the appropriate reason from the following.
(a)The animals are small in size and want to produce more offsprings.
(b)Food is available in plenty in water.
(c)To ensure better chance of fertilisation.
(d)Water promotes production of large number of gametes.