Scientists often classify organisms based on their ability to perform certain processes
which of the following shows an example of organisms being classified based on their physiological abilities?
a. plants can make their own food using energy from the sun.
animals cannot make their own food.
b. plant cells have cell walls.
animal cells do not have cell walls
c. animals and plants have membrane-bound nuclei
bacteria do not have nuclei.
d.
protists can be unicellular or multicellular
bacteria are unicellular

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.