A)Enzymes speed up reactions that help sustain life
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.
Answer:
chemical, mechanical, electrical
Explanation:
Answer:
cell wall,vacoule,and plastids are not present