Sweat, mucus, tears, and saliva all contain enzymes that kill pathogens.
Answer:
the reaction was exothermic because the heat dissipated quickly after a mere few minutes.
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This is why natural selection acts on phenotypes instead of genotypes. A phenotype is an organism's physical traits, while a genotype is an organism's genetic makeup. This may sound counter-intuitive since the genetic makeup does get<span> passed on from generation to generation through reproduction.</span>
