This page describes sexual reproduction, highlighting the process of anisogamy where two distinct gametes, male (sperm) and female (egg), unite to create a new individual. It notes that in most eukary...This page describes sexual reproduction, highlighting the process of anisogamy where two distinct gametes, male (sperm) and female (egg), unite to create a new individual. It notes that in most eukaryotes, the sperm is small and motile, while the egg is larger and serves as nourishment for the developing embryo, fulfilling the different needs for mobility and nutritional support during embryonic development.