Select all of the reasons that a multicellular organism's cells undergo mitosis. question 33 options: to regenerate and repair tissues to produce sperm and eggs to cut the number of chromosomes in half for the organism to grow and develop

The answer would be:
to regenerate and repair tissues
for the organism to grow and develop

Mitosis is a cell division that produces two diploid cells that identical to its parent. Since the cell identical to its parent, cells produced by mitosis can replace the parent cells(replace or regenerate) or increase the number of cells(grow and develop).