Sexual
Involves M/F sex cells, two parents fusing
Form zygote, dev. new individuals: meiosis
Origin. cells have 1/2 of chromosomes, so it adds up
Have traits from both parents, unique being, more variation
Plants = egg cells, pollen; Animals = egg cells (ova), sperm
Hi risk, induces variation, for long-term species survival
Takes place on all living (single-celled to humans)