Which has prokaryotic cells
a. rose thorn
b. lactobacillus
c. beet root
d. human kidney

Look at the photo of the leaf. which term best describes this leaf?

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

Crossing over is a method of (blank)?