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HIV Rapid Tests

The hiv antigens that are used in the oral rapid tests, are they infectious? The tests do not contain any actual virus but I am curious if the antigens themselves could somehow create the virus on…
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5.6: Development of the Heart - Biology

Learning ObjectivesBy the end of this section, you will be able to:Describe the embryological development of heart structuresIdentify five regions of the fetal heartRelate fetal heart structures to adult counterpartsThe human heart is the first functional organ to develop. It begins beating and pumping blood around day 21 or 22, a mere three weeks after fertilization.
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