Quiz
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Which statement best explains why water is essential for all living things?
A
o Water makes up 65% of human beings.
Water is an essential component of blood.
o Water covers 75% of Earth's surface.
O Water is necessary for cellular functions.

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.