The sun is the ultimate source
Ur answer is A. G2
Explanation: it goes G1 Phase, S Phase, and then G2 phase. The answer is A.
It’s an infectious agent that causes disease
All the branches of science that deal with the scientific study of living organism are called life sciences. e.g; botany,zoology,anatomy,biochemistry,embryology etc..
I think it is D. because the sun's radiant energy gives life to the earth life forms.