Question

Pick the odd-one-out from each of the groups given below on the basis of respiratory organs. Give a reason for your answer.

Cockroach, Grasshopper, Snail, Ant

Answer 1

An ant, grasshopper, and cockroach are insects. They respire through the trachea. But, Snail has a different respiration organ. They respire through gills and skin. So, the odd-one is the snail.