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Hope it helps. Braonliest?
Heterozygous. A diploid organism is heterozygous at a gene locus when its cells contain two different alleles of a gene.
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Assuming the options found elsewhere, one of the achievements of pre-Columbian (i think you mean Mesoamerican, not "mess") cultures would show that they had intensive architecture, which they sustained through intensive agriculture.
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Hoped this helped:)
False, if homeostasis is disrupted then the cells will finish splitting