Question

from where do aquatic animals get oxygen ​

Answer 1

they breathe the dissolved oxygen in water and also their breathing capacity is many times faster than humans

Answer 2

$\boxed{\bold{AQUATIC\:\:ANIMALS\:\: :}}$

✔ Aquatic organisms are those animals which can be found or seen in water bodies.

✔ The most popular and common example of one aquatic organism is fish.

✔ Walruses are large, brown-coloured marine mammals that have flippers and tusks. They live in the North Pole, in the Arctic Ocean and Sub-arctic seas.

✔ Whales are the largest animals on earth. They are marine mammals and give birth to live young and feed them with milk that they produce from their mammary glands.



$\boxed{\bold{COLLECTION\:\:OF\:\:OXYGEN :}}$

[A] INTRODUCTION : We already learnt that aquatic animals are those which totally live in water and are fully associated with water bodies. The most popular ones are fishes of which the famous ones are starfishes, jellyfishes, etc.

[B] COLLECTION OF O2 : Aquatic animals collect or get the oxygen which is actually dissolved in water surrounding them. They use that dissolved oxygen typically for respiration. Thus, we can say the aquatic life is sustained. Furthermore, 1 dm³ of water contains nearly 40 cm³ of dissolved oxygen.