Which of the following is the site of fertilisation in humans?
Tadpole
Pupa
Moth
Fly
Fertilisation is the fusion of male and female gametes. In human beings, it takes place in the fallopian tube of the female reproductive system.
A tadpole develops into an adult frog by the process of :
A. fertilisation
B. metamorphosis
C. embedding
D. budding
Which of the following is usually not a water pollutant?
(a) sewage
(b) fertiliser
(c) fly ash
(d) pesticide