Which blood cells of mammals are concerned with immunity?

Carnivorous animals use these teeth to tear flesh.

The Henle’s loop of nephron is mainly responsible for reabsorption of water in the kidney. Which of the following has a long loop of Henle in its nephrons to conserve water?

You were given two unlabelled slides with blood smears of an amphibian and a mammal.

You would differentiate the blood samples by observing the _______.

For the digestion of cellulose, an enzyme called cellulase is required. Some mammals lodge cellulase producing bacteria in their digestive system by offering them food and shelter. These mammals are mostly ____________.