Viruses and bacteria are unicellular organisms.

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

What kinds of molecules can pass through the cell membrane without any problem?

Some substances but not other can cross the (blank) membrane of a cell