Question

1. Complete the given sentences with the correct form of the verbs given in the
brackets.
(a) I-to your house tomorrow. (come)
(b) They-a new song in the competition. (sing)
(c) The boy-the road next month. (repair)
(d) We-to visit Chennai next week. (go)​

Answer 1

Answer:

1.i will come to your house tomorrow

2.they will sing a new song in the competition.

3.the boys will repair the road next month

4.we shall go to visit Chennai next week

Explanation:

Answer 2

Explanation:

a) reproduction process has inbuilt tendency for variation .error in DNA copying during reproduction cause variations and result into variety of organisms.

b)i)ln asexual reproduction offspring are more similar as it is monoparental. Genetic material only one parent is involved which result into less variation and more similarity

ii) in sexual reproduction organism are not much similar as it is biparental process and genetic material of two individual is involved.

c)evolution leads to formation of two different species which is caused by genetic drift, natural selection,geographical isolation and severe change in DNA of germ cell. Its is usually caused when there is geographical isolation in above case and result into species which cannot interbreed.