Toxins from seafood mushrooms and mold present the greatest potential for what kind of contamination

The correct answer is food poisoning.

Explanation:

In some of the conditions, food poisoning can be associated with either chemical toxins or natural toxins (like those in pufferfish and mushrooms). In some of the cases, the mushrooms in the grocery have been mistakenly considered safe to consume, but in real sense they were toxic. In the case of seafood like pufferfish when not cooked accurately can become contaminated and dangerous to eat.  

Some of the foods containing molds also comprise invisible bacteria that can cause toxicity. Some of the molds also can result in respiratory issues and allergic reactions. Some of the molds can even generate mycotoxins, that is, the poisonous components, which can make one very sick.  

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genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).