NH_(3) is excretory waste in which of the following :-
( A )Bird
(B) Amphibians
(C) Mammals
(D) Fishes

Reptiles share which of the following character with birds and mammals

Which among the following have scales? (i) Amphibians (ii) Pisces (iii) Reptiles (iv) Mammals

Which of the following features is common between birds and mammals ?

Which of the following characteristics is not shared by birds and mammals

Which of the following is commonly called ''age of mammals and birds''

Babesia species causes tick fever in which of the following A) cattle (cow and buffelo) B) dogs C) birds D) man

Which one of the following characteristics is not shared by birds and mammals ?