Answer:
The periodic table _____.
1. is arranged by atomic mass
2. is arranged by number of protons
3. was developed by early alchemists
4. is divided into vertical periods and horizontal groups
Explanation:
Answer:
Living organisms need nutrients to help break down food to give the organism energy.
1. Cigarettes
2. Beer
3. Antacids
4. Cocaine
Answer:
shape
Explanation:
in enzymes the active site only lets specific substrates bind with it other substrates cannot bind to the active site