Question

How many of the following invertebrates
exchange O2 with CO2 by simple diffusion
(Sponges, Coelenterates, flatworms,
Annelida, Arthropoda, Mollusca, Pisces)
6
5
4
3​

Answer 1

Answer:

I dont know the answer for this question

Explanation:

like and follow

Answer 2

Answer:

(c) 4

Explanation:

Simple diffusion is a mechanism that moves oxygen and carbon dioxide across cell membranes without the need for energy and is fueled by concentration variations on either side of the membrane.

Simple diffusion is what causes a few drops of dye to gradually make a glass of water a consistent colour or an air freshener to spread around a room. Naturally, molecules move from concentrated locations to less concentrated ones.

The oxygen diffuses across the cell membrane to the region of lower concentration inside the cell as oxygen-rich (and carbon dioxide-poor) blood passes past a cell. Due to the oxygen molecule's (O2) tiny size and lack of charge or polarity, it can do this task with ease.

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