The photo shows an animal embryo. Which two activities happen as the embryo grows?
O A. The cells decrease in number.
B. The cells form new organisms.
C. The cells rearrange molecules.
DD. The cells divide.

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope

Why are enzymes important to cells? they bring about chemical reactions. they provide structural support. they form the two layers of membranes. they store large quantities of energy.

Asubstance that will change shape to fit its container but has a definite volume is in a phase of matter