A baby isn't considered a fetus until about 8 to 9 weeks after
conception. During those first weeks, the baby is considered as the
embryo. The embryo is the development of the pregnancy until about 9
weeks, it will then turn into a fetus.
Lytic Cycle Hope this helps! :D
Since enzymes function as organic catalysts, a cell would not be able achieve homeostasis if the required enzymes were not present.