Question

Consider the following pairs about the organisms and their respective respiratory organ.
1. Earthworm - Moist skin of body
2. Mosquito- Tracheal system
3. Fish- Gills
4. Birds- Lungs

• A. 1, 2, 3 and 4
• B. 1, 3 and 4
• C. 2, 3 and 4
• D. 3 and 4

Answer 1

The correct option is A 1, 2, 3 and 4

Earthworms have no special respiratory organs. Gases are exchanged through the moist skin and capillaries, where the oxygen is picked up by the hemoglobin dissolved in the blood plasma and carbon dioxide is released.
The basic respiratory system of insects consists of a series of rigid tubes, called as tracheae.
In most of the fishes, the respiration takes place through gills.
The birds have lungs, air sacs and a syrinx and their respiration requires two cycles to move a volume of air.
Therefore, the correct answer is option A.