Choose the correct statement from amongst the following:

Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution.

i. Lower groups of organisms have simpler body design

ii. Asexual reproduction is common in lower groups

iii. Asexual reproduction is common in higher groups of organisms

iv. The high incidence of sexual reproduction in angiosperms and vertebrates

Choose the correct answer from the options given below:

Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because:

There is no natural death in single celled organisms like Amoeba and bacteria because:

There are various types of reproduction. The type of reproduction adopted by an organism depends on: