Reproduction in Animals

The young one of Hen is Chick.

Sexual and asexual are two modes of Animal reproduction.

Reproduction

Zygote

Both male and female reproductive organ produces gamete. (True)

Plants reproducing sexually have male and female parts. (True)

Because it is the zygote which develops into new individual.

The basic function of reproductive parts is to produce gametes which eventually fuse to form Zygote.

The basic function of reproductive parts is same in both plant and animal. (True)

Human sperm is a single celled. (True)

Tail, middle piece and head are the components of Sperm cell.

Tail helps the sperm swim and float all the way from vagina to fallopian tube where it fertilises the egg.

Single cell.

Pair of testes, two sperm ducts and a penis constitutes male reproductive organs.

When sperm comes in contact with an egg, one of the sperm gets fused with the egg to form zygote, such kind of fusion between egg and sperm to form a zygote is called as fertilisation.

It is the beginning of the new individual, for detail refer Section A answer no 15.

Fallopian tubes.

Female gametes called Ova.

Fertilisation which takes place inside the female body is called as internal fertilisation, it occurs in humans, cows, hens and dogs.

Cows, hens and dogs.

Fish and frog.

The development of baby takes place in Uterus.

Ovary produces egg cell in female reproductive system.

Single egg cell is released by one of the ovary each month.

During fertilization only one sperm cell can fuse with the egg.

Internal fertilization occurs in case of human.

Foetus is the developing mammal or other viviparous vertebrate, it is that stage of the growing embryo in which all the body parts can be identified.

True

Uterus

Development of Foetus stage of embryo ensures the birth of child.

Those animals which lay eggs are called Oviparous.

Those animals which give birth to young ones are called viviparous.

Oviparous - frog, fish, lizard

Viviparous - cow, dog, human beings

Frog gains jumping in addition to swimming by transforming from tadpole to adult frog.

Bulges on the body of organisms, which develop into new individual, are called Bud.