Question

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Answer 1

Distinguish between external fertilisation and internal
fertilisation.
(ii) What is the site of fertilisation in human beings?
Answer.
(i) Fertilisation is defined as the fusion of a male gamete (sperm) with a female gamete (an ovum or egg) to form a zygote during sexual reproduction.

(ii) The site of fertilisation in human beings is in the fallopian tube of female reproductive system.
Questions

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

In humans, the development of fertilised egg takes place in the

(a) ovary

(b) testis

(c) oviduct

(d) uterus

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.

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.

Reproduction by budding takes place in

(a) hydra

(b) amoeba

(c) paramecium

(d) bacteria

Which of the following statements about reproduction in humans is correct?

(a) Fertilisation takes place externally.

(b) Fertilisation takes place in the testes.

(c) During fertilisation egg moves towards the sperm.

(d) Fertilisation takes place in the human female.

In human beings, after fertilisation, the structure which gets embedded in the wall of uterus is

(a) ovum

(b) embryo

(c) foetus

(d) zygote

Aquatic animals in which fertilisation occurs in water are said to be:

(a) viviparous without fertilisation.

(b) oviparous with external fertilisation.

(c) viviparous with internal fertilisation.

(d) oviparous with internal fertilisation.

After fertilisation, the resulting cell which gives rise to a new individual is the

(a) embryo

(b) ovum

(c) foetus

(d) zygote


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Answer 2

1 define vegina
2 draw the diagram of female reproductive system
3 define labia
4 define breasts
5 what is a nipple
6 what is the work of breast
7 define bartholins glands
8 where is clitories located
9 where is vaginal orifice located