How might cancer of the testes affect a man's ability to make sperm

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?

Adistinctive characteristic of mammals that is not observed in other vertebrates is

Can ground tissue do photosynthesis