Biomagnification is a process that occurs in ecosystems when certain chemicals or substances become concentrated as they move up the food chain. This phenomenon occurs because the organisms at the top of the food chain eat many smaller organisms, each of which has accumulated some amount of the substance. Over time, this results in a build-up of the substance in the tissues of organisms higher up in the food chain. Biomagnification can have a number of negative impacts on ecosystems and human health. For example, high levels of mercury in fish can cause neurological damage in humans who consume them. Similarly, exposure to pesticides like DDT has been linked to a range of health problems, including cancer, reproductive issues, and developmental disorders.
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