Thecodont teeth are present in
a. Sphenodon
b. Crocodiles
c. Mammals
d. Scoliodon

Blood platelets are present in the blood of (a) Birds (b) Reptiles (c) Mammals (d) Amphibians

Phycoerythrin is present in a. Euglena b. polysiphonia c. Chlamydomonas d. fucus

Phycoerythrin is present in a. Euglena b. polysiphonia c. Chlamydomonas d. fucus

Phycoerythrin is present in a. Euglena b. polysiphonia c. Chlamydomonas d. fucus

keratin is a protein present in A. Blood B. Skin C. Lymph D. Egg

Which one of the following sets of animals share a four chambered heart ? (A) Amphibian, Reptiles, Birds (B) Crocodiles, Birds, Mammals (C) Crocodiles, Lizards, Turtles (D) Lizards, Mammals, Birds

The auditory receptors are present (a) in cochlea (b) in nose (c) on tongue (d) in retina