I believe your answer is B :)
The answer is C. Enzymes lower activation energy, allowing the reaction to happen more quickly, which is why they are called catalysts.
Antigens are substances capable of mobilizing the<u> </u><u>IMMUNE SYSTEM</u>
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<u>Your answer would be: </u> IMMUNE SYSTEM
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<u>Hope that helps! </u> : )
it belongs there because the tissues create minerals and a daffodil has that special tissue so it is vascular.
I think that is might be 25%. I hope that helps.
