Which of the following during respiration obtain water dissolved oxygen by diffusion through their body surface?

Cnidarians

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Fishes

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Amphibians

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Reptiles

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Cnidarians
Jellyfish do not have a specialized respiratory system. Their surface is thin enough for entry of oxygen directly from the water and then release carbon dioxide. The oxygen is absorbed through the coelenteron. Therefore, jellyfish take in oxygen and release carbon dioxide through diffusion because of their thin layer of skin.
So, the correct answer is 'Cnidarians'.

Suggest Corrections