How do prokaryotes differ from eukaryotes?
prokaryotes are always multicellular, while eukaryotes are always single celled.
prokaryotes are always single celled, while eukaryotes can be single-celled or multicellular.
there is no difference between the two types of cells.
prokaryotes have a nucleus, while eukaryotes do not.

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

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.

Several billion years ago which gas was the least prevailant in the atmosphere