Which of the following animal does not show metamorphosis ?
(a) fish
(b) frog
(c) silk moth
(d) mosquito
Which of the following is not an oviparous animal ?
(a) snake
(b) fish
(c) rat
(d) frog
An animal in which the oxygenation of blood does not take place in the lungs is : (a) cow (b) fish (c) frog (d) fox