A-level-Biology OCR A

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Why is blood a liquid and not a gas?

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Why is blood a liquid and not a gas?

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Why is blood a liquid and not a gas?

Red blood cells suspended in continuous liquid plasma inside a cutaway blood vessel.
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Illustrative learning panels: 1, What else do you need to survive besides oxygen, water and food? — understood; 2, Different types of the above — needs practice, showing outlined humans, fish and insects beside a sponge; 3, Blood tubes — understood, showing arteries, capillaries and veins; 4, When do cells shower? — needs practice, showing cells surrounded by tissue fluid. These are example ratings, not your progress.

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When do cells shower?

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