Science, asked by hamzauzair501, 16 days ago

Explain why single-celled organisms do not need a circulatory system.

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Answered by nishasharma50

A circulatory system is not needed in organisms with no specialized respiratory organs, such as unicellular organisms, because oxygen and carbon dioxide diffuse directly between their body tissues and the external environment.

Answered by Anonymous

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Explain why single-celled organisms do not need a circulatory system.​

Answers

Explain why single-celled organisms do not need a circulatory system.