Choose the most appropriate answer :
The number of nuclei present in a zygote is
none.
one.
two.
four.
B.
one.
Choose the most appropriate answer :
Internal fertilisation occurs
in female body.
outside female body.
in male body.
outside male body.
Choose the most appropriate answer :
A tadpole develops into an adult frog by the process of
fertilisation.
metamorphosis.
embedding.
budding.
Describe the process of fertilisation in human beings.
Explain the importance of reproduction in organisms.