Question

differentiate between the breathing process in fish and humanbeings​

Answer 1

Why do fish have respiratory systems which are so different to humans?

The answer is simple, we have different habitats. Fish live under water and collect oxygen from the water. Humans live on land and we get oxygen from the air in the atmosphere. Humans can go underwater but we have to hold our breath. We can only hold our breathe for a certain period of time, unlike fish, they live under water and they breathe in it. We have to adjust our breathing system to go underwater but fish cannot, they do not have the ability to hold their breathe on land. So that gives you the answer that gills of fish can only be used underwater. Other animals can do both, they can breathe under water and breathe on land. So they can live on both dry and wet habitats

Answer 2

Answer:

Fishes breathe through their gills, taking in dissolved oxygen from water and releasing carbon dioxide.

Fish have a flap on either side of its head, called opercullum. Four gill arches are contained under these flaps, and branch into two filaments called lamellae. Lamellae are the gas exchange surfaces, that take in oxygen, and release any excess carbon dioxide from the fish into the water.

                                                         WHEREAS,

Humans breathe through lungs, taking in oxygen from atmosphere and releasing carbon dioxide.

While inhaling, the ribs move up and out, caused by the intercostal muscles contracting. The diaphragm also contracts, which moves it down. While exhaling, the ribs move down and in.