Question

Fish breathe through-

• A. Lungs
• B. Stomata
• C. Gills
• D. Skin

Answer 1

The correct option is C

Gills

The correct option is C:

Explanation of the correct option:

1. Branchial respiration is the process of breathing through the gills.
2. The majority of aquatic arthropods and molluscs use gills to breathe.
3. It is the gas-exchange organ where oxygen is taken up into the body and carbon dioxide is removed via diffusion, creating useable ATP energy through aerobic metabolic pathways

Explanation of the incorrect option:

Option A:

1. Pulmonary respiration is the process of breathing through the lungs.
2. The terrestrial forms exchange gases through their lungs.
3. Lungs are used by amphibians, reptiles, birds, and mammals to breathe.

Option B:

1. Stomata are used for transpiration and gaseous exchange by plants.

Option D:

1. Cutaneous respiration is the process of breathing via the skin.
2. Frogs and other amphibians can breathe through their wet skin.

Final answer: Fish breathe through gills.