Mother gives birth to a baby but the baby has characters of both parents. How is this possible?

Write two ways by which AIDS is transmitted.

Write two ways by which AIDS is transmitted.

After observing Fig. 9.3 answer the following.

a. Read the following statements and label them in the figure:

(i) The part which produces female gametes.

(ii) The part where the development of the baby takes place.

(iii) The part through which the developing embryo passes to reach the uterus.

b. Explain the future development of the embryo that would take place after it gets embedded in the uterus.

Testes produce male germ cells. What are these cells called? Name its parts.

List modes of reproduction present in animals.

Write five differences between menarche and menopause.

Name the organs of the female reproductive system in humans.

Mother gives birth to a baby but the baby has characters of both parents. How is this possible?

Fill in the following blanks with suitable words:

(a) The process of …………. ensure continuity of life on earth.

(b) The cells involved in sexual reproduction are called ……………..

(c) Fusion of gametes gives rise to a single cell called ………..

(d) The process of fusion of gametes is called ……..

(e) The other name of egg cell is …………….

(f) A sperm is much ………………. than an egg cell.

(g) In humans, one nature egg (or ovum) is released into oviduct every ………. by one of the ovaries.

(h) The egg laying animals are called ………… animals.

(i) The cow is a ………… animal whereas ostrich is an …………………. animal.

(j) The change of caterpillar into an adult silk moth is called ……………….

(k) The larva of frog is called ………….

(l) The two common methods of asexual reproduction in animals are ………. and …………………

(m) Dolly , the sheep, was produced by the technique called ………………….

What are the two general methods of reproduction in organisms?