Question

Q.1. Pick the odd-one-out from each of the groups given below on the basis of respiratory organs. Give reason for your answer.
(a) cockroach, grasshopper, snail, ant
(b) lizard, cow, earthworm, snake
(c) crocodile, whale, dolphin, fish
(d) snake, tadpole, crow, goat

Answer 1

Dear student'
The answer for a is snail since it belongs to the class of Mollusca where other belongs to class Arthropoda having simple spiracle like respiratory system
The answer for the second one is earthworm since that is only odd one without having lungs remaining has lungs
The answer for the third one is fish since it has gills for respiration.
The answer for the fourth one is tadpole since it respires by gills.

Regards