What environmental condition do living systems rely on ambient pressure for regarding internal fluids?

Answer

Keeping them in a liquid state.

Living systems rely on ambient pressure to keep internal fluids, like blood, in a liquid state; the near-zero pressure on the Moon causes liquids to boil away.

What environmental condition do living systems rely on ambient pressure for regarding internal fluids?

#Videos

Why Can't We Live On The Moon? - YouTube

How Long Can a Human Survive on the Moon? | The Dr. Binocs Show

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