Answer:
b is the correct answer i guess
That the universe was created at one time with a huge bang.
This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.
Answer:
protiens
Explanation:
in protiens in cells have nightogen
I think it my be a structure to life