What determines an atom's reactivity? #1. how many protons the atom contains.
#2. How many energy levels the atom contains.
#3. whether the atom is a metal or a nonmetal
#4. how many valence electrons the atom contains.

Explain why process 2 is so important to sexual reproduction identify processes 1 and 3 state one difference between the cells produced by process 1 and cells produced by process 3

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the: