To get replace old cells or grow.
An organism is any living thing, so a plant is an organism. Maybe you're thinking of cells, as a plant grows cells divide forming new cells, this is called mitosis. Photosynthesis is how plants get energy from sunlightand has nothing to do with how many cells the plant has.
Living cells.
So that old or damaged cells can be replaced, and that new cells can form, which increases the size and strength of an organism.
More cells are created, which gives the organism more mass, and the new cells help to replace dead cells.
Cells grow in order for the organism to grow and reproduce. Cells only grow to replace other cells that die off and allow for the continued existence of the organism.
The purpose of cellular mitosis is for the growth of an organism. It produces two cells with identical genetic information, and replaces damaged or dead cells.
As cells are known as the basic functional,structural and fundamental units of a living organism,it,likewise carry out the important functions in a living body. Cells are also called the "building blocks" of life because any living organism exist due to the presence of cells.It is also responsible to heal body wounds as new cells grow due to division in old cells.The genetic materials(DNA and RNA)are transported to the new generating cell by the cells in the body. cells do many other functions in the body of a living organism but these are some of the main and important functions of a cell.
The reproductive system is responsible for creating a new living organism.
Stem cells
An organism is any living thing, so a plant is an organism. Maybe you're thinking of cells, as a plant grows cells divide forming new cells, this is called mitosis. Photosynthesis is how plants get energy from sunlightand has nothing to do with how many cells the plant has.
Living cells.
So that old or damaged cells can be replaced, and that new cells can form, which increases the size and strength of an organism.
If you mean that an organism has no genetic similarly to any other living organism, then you have a new species.
Regeneration. If the cells didn't make new ones, the organism would die.
a group of similar cells that perform a common function
Cell division is responsible for growth because the new cells replace the dead cells in an organism. The new cells keep the organism alive by continuing to the job of the cell that it divided from.
Fragmentation occurs when an organism of many cells breaks into two or more parts and these parts survive to produce a new organism.