Final answer:
In Volvox, specialized reproductive cells within the colony undergo division to create multicellular daughter colonies, which invert to reveal their flagella upon release and mature into individual organisms.
Step-by-step explanation:
In Volvox, a colonial organism, embryogenesis occurs in specialized reproductive cells. Within these colonies, which comprise 500 to 60,000 cells, only a few cells take on the role of reproduction.
These reproductive cells undergo division to form new colonies, known as daughter colonies. The process starts with the reproductive cells dividing repeatedly to form a multicellular juvenile within the parent colony structure.
As they mature, these daughter colonies invert to position their flagella on the outside, which allows them to eventually swim independently. At maturity, the parent colony releases the young Volvox colonies to the surrounding environment where they grow and will eventually reproduce to continue the cycle.