Biology
Grade-10
Easy
Question
_____________ show a wide range of tolerance to oxygen depletion.
- Cows
- Birds
- Humans
- Fishes
Hint:
The aquatic organisms that are cold blooded in nature.
The correct answer is: Fishes
Decreasing dissolved oxygen level in the environment can be sensed by fishes. As a result, the fish swim up to the surface of water and acquires oxygen from the top layer of the water column which is relatively rich in dissolved oxygen. This behavior is called aquatic surface respiration (ASR).
Decreasing dissolved oxygen level in the environment can be sensed by fishes. As a result, the fish swim up to the surface of water and acquires oxygen from the top layer of the water column which is relatively rich in dissolved oxygen. This behavior is called aquatic surface respiration (ASR).
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