Explain why roots are not needed in marine algae?

According to the loco mass the mass of reactants and products

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?

What best describes the dropping height of a ball that bounces back up to a height of 45 cm