Question

II. Very short answer type questions
Give two examples for the following.
1 Animals in which exchange of gases takes place
directly from the water or air through diffusion​

Answer 1

Answer:

cnidarians and flatworms

Answer 2

Explanation:

Solution :-

Sponges and jellyfish lack specialized organs for gas exchange and take in gases directly from the surrounding water. Flatworms and annelids use their outer surfaces as gas exchange surfaces. Arthropods, annelids, and fish use gills; terrestrial vertebrates utilize internal lungs.