The phase of mitosis where the chromosomes coil up and condense is at prophase.
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> : )
<span>that would be 200,000 ybp</span>
i believe its B and D as they're both acids/enzymes