Question

which statement best explains why water is essential for all living things? water makes up 65% of human beings. water is an essential component of blood. water covers 75% of earths surface. water is necessary for cellular functions.

Explanation:

The question asks for the broad reason water is essential for all living things. The first three options are either specific to humans, a single biological structure, or a planetary fact, not a universal requirement for all life. All living organisms rely on cellular processes, and water is critical for these core functions like nutrient transport, chemical reactions, and maintaining cell structure.

Answer:

D. Water is necessary for cellular functions.