Answer: yes
Explanation:
Development in multi-cellular organisms happens in one of three ways
1) Number of cells increase
2) Size of existing cells increase
3) Both happen at the same time
1 ex -When you get a cut your existing cells replicate to heal the wound by simply replicating.
2 ex-There are sea slugs that consume plant life and then add the chloroplast to the existing cells on its back in order to create organic solar panels.
3 ex-When mammals are maturing the sexual systems both increase in size (increase in cell number) and become functional (development of new cell types through DNA sequences that were lying dormant)
