Question

Respiration in aquatic animals occurs by gills​

Answer 1

Explanation:

Fish and other aquatic organisms use gills to take up oxygen dissolved in the water and diffuse carbon dioxide out of the bloodstream. Some insects utilize a tracheal system that transports oxygen from the external environment through openings called spiracles.

Answer 2

YEAH

Aquatic animals get oxygen through gills to survive and rate of breathing in aquatic animals is much faster than in terrestrial animals.