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.

• A. Snake
• B. Tadpole
• C. Crow
• D. Goat

Answer 1

The correct option is B

Tadpole

The correct option is B.

Explanation of correct option:

1. Tadpole has gills as their respiratory organ.
2. Gills are used for gaseous exchange.

Explanation of incorrect options:

Option A

1. Most snakes have lungs.
2. They have a nasal cavity, glottis, trachea, bronchi, lungs, and air sacs for respiration.

Option C

1. Crow has pair of lungs for respiration.
2. they have nostrils for inhalation.

Option D

1. Goats are terrestrial animals.
2. They have lungs with trachea for respiration.

Final answer: Tadpole is the odd one out on the basis of respiratory organs.