Final answer:
Bioaccumulation is the process in which concentrations of chemicals increase in toxicity as they move up the food chain.
Step-by-step explanation:
Bioaccumulation is the process in which concentrations of chemicals increase in toxicity as they move up the food chain. This happens because certain chemicals, such as pesticides, heavy metals, or persistent organic pollutants, are absorbed by organisms at the base of the food chain and accumulate in their tissues over time. As predators consume these organisms, the chemicals become more concentrated and can reach harmful levels in the top predators.
Learn more about Bioaccumulation