The study of chemical reactions of living this is called biochemistry.
Answer:
B)Cyclins regulate the timing of cell cycle
Answer:
ok I don't know the first one
2.nucleus is the power of cell and that make a new organisms and also it control all of cell activities.
3.green
4.ya b/c it is made or get in green pigment.
5.that is unspecified of plant cell and get in chloroplaste.
