Which is NOT a method of direct cell counting? spectrophotometry

Petroff-Hausser chamber

microscope cell count using fluorescence staining

Coulter counter

viable plate count

When organisms are classified ,they are given a two part name

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.

What can happen to an enzyme as tempature rises