The answer is A. macromolecules
There are 4 types of macromolecules; lipids, proteins, carbs and nucleic acids
I just did it and got it correct the answer is inside the circle which is the first one. Good luck on the questions.
<span>B. explains how mass can be converted into huge amounts of energy
Hope this helps!!
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cAMP in the cytoplasm
Many cAMP can be generated as a second messenger to amplify the signal in response to hormone binding.