<span>The starting material must be CO2 that can be fixed or turned into other molecules. </span>
According to Dalton; All matter is made up of small particles called atoms.
Answer:
Chemical reaction, not physical
Explanation:
there is no answer to your question because all of the options ARE blood types so there is no telling.
D. Is a fly shot effective in preventing the flu?
Answer A touches on the topics of economics and industrial feasibility of the flu shot.
B is more of an ethical / situational question.
C is a social question.
D is the only question which focuses on the science of microbiology and medicine.