Answer:
from the sun
Explanation:
producers get light energy from the sun
Answer:
playing or not playing classic music to the rose bushes
Explanation:
independent variable is the variable the expirementer changes or controls.
I'd mark answer B :) technically it means that you must eat enough food rich in those aminoacids because they can't be synthesized by the organism.
They're called Enzyme. They're made up of proteins. They act as a biological catalysts that can speed up chemical reaction. They have an active site that certain substrates binds into it and form a product. Enzyme works under optimum pH and temperature and the active sites are not changed unless denatured.