The number of nuclei present in a zygote is

1. none
2. one
3. two
4. four

Indicate whether the following statements are True or False.

(a) Oviparous animals give birth to young ones.

(b) Each sperm is a single cell.

(c) External fertilisation takes place in frog.

(d) A new human individual develops from a cell called gamete.

(e) Egg laid after fertilisation is made up of a single cell.

(f) Amoeba reproduces by budding.

(g) Fertilisation is necessary even in asexual reproduction.

(h) Binary fission is a method of asexual reproduction.

(i) A zygote is formed as a result of fertilisation.

(j) An embryo is made up of a single cell.

Define asexual reproduction. Describe two methods of asexual reproduction in animals.

In which female reproductive organ does the embryo get embedded?