Question

Where do most organisms that live in water get oxygen from? Give a word, not a formula.

Answer 1

Answer:

the organism gets oxygen from water as water always contains oxygen

Answer 2

Most organisms that live in water get oxygen from the dissolved water in the oxygen.

- Every living organisms need adequate amount of oxygen for their respiration process.

- This necessary oxygen is mostly taken from the atmospheric oxygen. This atmospheric oxygen is mostly stays in the free state in the atmosphere.

- But the water organisms which don't get access to the atmosphere ,get their oxygen from the dissolved oxygen in the water.