Question

What do animals use to get oxygen to every cell?
lungs
red blood cells
osmosis
all of the above

Answer 1

Answer:

how do animals obtain oxygen? animal cells exchange oxygen and carbon dioxide with their surroundings by diffusion across the puter coverings or membranes of cells.

Explanation:

Answer 2

Answer:

The chemical inside them called Haemoglobin helps them do this. When the blood passes through a capillary next to an alveolus in the lungs oxygen diffuses into the red blood cells, where it combines with the haemoglobin to form a bright red substance called oxyhemoglobin.

Explanation:

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