Question

Complete the cross-word puzzle using the hints given below.
Across
1. The process of the fusion of the gametes.
6. The type of fertilization in hen.
7. The term used for bulges observed on the sides of the body of Hydra.
8. Eggs are produced here.
Down
2. Sperms are produced in these male reproductive organs.
3. Another term for the fertilized egg.
4. These animals lay eggs.
5. A type of fission in Amoeba.

Answer 1

Across

1) Fertilization is the fusion of male gamete and female gamete to initiate the development of a new individual organism.

6) Internal fertilization is the union of an egg cell with a sperm during sexual reproduction inside the body of a parent. Internal fertilisation take place in hen.

7) Budding is a type of asexual reproduction that occurs in Hydra in which a part of the organism starts bulging out and develops into a separate individual.

8) Ovary is an organ found in the female reproductive system that produces the egg/ ovum.

Down

2) The testicle or testis is the male reproductive gland that produce both sperm and androgens (male hormones).

3) Zygote is the fertilized egg cell that results from the union of a female gamete (egg) with a male gamete (sperm).

4) Animals that produce young ones by means of eggs which hatch after they have been laid by the parent are called oviparous animals.

5) Binary fission is a type of reproduction in which a single organism gets divided into two. This type of reproduction takes place in Amoeba.