Multiple choice

What is the function of gills in aquatic animals?

  1. To absorb dissolved oxygen in water

  2. To attain energy from food

  3. To help in body movement

  4. To act as balancer

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gills are the organ of respiration in aquatic animals. Oxygen is present in dissolved form in water. Gills help these animals to absorb this dissolved oxygen in water. It is the fins in fish which act as balancer and a streamlined body to help in movement.