How would living things most likely be affected if there were a shortage of water on earth?
living things would not be able to live, reproduce, or regulate their own temperature
living things would not be able to absorb and transport heat or regulate their own temperature.
living things would not be able to reproduce or absorb and transport heat
living things would not be able to regulate their own temperature, live, or absorb or transport heat.

The correct option is A. Living things would not be able to live, reproduce, or regulate their own temperature.

Explanation:

Living things are made up of 60-70% of water. Living things like humans can survive without food for some days but cannot live without water. Hence, without water life would be impossible on Earth. It would not be possible for an organism to live or reproduce.

Water is essential for maintaining homeostasis. If water is absent, living organisms will not be able to regulate their temperature which will make the survival of the organism impossible.

The answer is A. Living things would not be able to live, reproduce, or regulate their own temperature.

Explination: the reason for this is because all things that are on earth living have to have water to stay living.