Answer:
The treatment generally consists of the independent variable, which is the variable that is being manipulated by the experimenter, and the dependent variable, which is observed or measured to see if it is responding to the independent variable.
BRAINLIST PLEASE
1. an atom
2. compound
3. both
4. atom
I had to draw a sodium atom so if i remember correctly there are 11 electrons, 11 protons, and 12 neutrons. Cx Hope I helped.
Organisms that are well adapted to live together to in the same area over time.