Explain why a single-celled organism, like an amoeba, requires diffusion alone for enough oxygen to be supplied.
The metabolic activity of single-celled organisms is low while the surface area-to-volume (SA: V) ratio is large
Carbon dioxide production is low and oxygen demand is high
Single-celled organisms, like amoeba, produce high amounts of carbon dioxide and require less oxygen
The metabolic activity of single-celled organisms is high while the surface area-to-volume (SA: V) ratio is small
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