Question

Fish die by asphyxiation when moved to a chambers with air from a warer filled chamber though air has 100000 time more oxygen concentration than in water

Answer 1

Answer:

Fish do not have lungs, and their gills are adapted only to absorb O2 from water.

Explanation:

Answer 2

Fish die by asphyxiation even if they are kept in an environment with a million times more oxygen than water due to their evolved mechanisms to intake oxygen.

we need to understand the mechanism with which fish imbibe oxygen in their bodies.

Water enters their bodies through the gills, the respiratory organs of the fish.

The gills are covered with feathery filaments which can be considered analogous to the villi in human intestines. As the villi absorb residual minerals and proteins, the filaments on gills are rich in blood which absorbs the oxygen from the water.

This is also similar to the way capillaries in our lungs absorb oxygen directly into blood from air.

Hence, even if fish are kept in an environment with a million times more oxygen than water, they still wouldn't survive because they have evolved mechanisms to intake oxygen from water over millennia.