The first step in designing an experiment is the form a testable question.
Answer:
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Explanation:
photosynthesis creates oxygen, water and glocose(starch) and we take in those and use it in our mitochondrias to create atp so it can hapen all over again.
I believe the answer to this is substitution <span />
It would be #2 because it dosent have those specific antigens to defend the pathogen.
