The correct answer is: A. Biomagnification
Biomagnification is the process by which the concentration of a substance, such as a pesticide, increases in organisms at higher trophic levels in a food chain. This can occur when the substance is not broken down or excreted by the organism, and is instead passed on to the next organism in the food chain. As the substance moves up the food chain, the concentration of the substance increases, as does the risk of harm to the organism.
Bioaccumulation is the process by which a substance builds up in an organism over time. This can occur when the substance is not broken down or excreted by the organism, and is instead stored in the organism’s tissues. As the amount of the substance in the organism increases, the risk of harm to the organism also increases.
Biodegradation is the process by which a substance is broken down by living organisms. This can occur when the substance is eaten by an organism, or when it is exposed to enzymes produced by an organism. Biodegradation can help to reduce the concentration of a substance in the environment, and can also help to prevent the substance from accumulating in organisms.
Bioremediation is the process of using living organisms to clean up pollution. This can be done by using organisms to break down pollutants, or by using organisms to remove pollutants from the environment. Bioremediation can be a cost-effective and environmentally friendly way to clean up pollution.
In the case of pesticides, biomagnification is the most likely process to occur. This is because pesticides are often not broken down or excreted by organisms, and are instead stored in the organism’s tissues. As the amount of pesticide in the organism increases, the risk of harm to the organism also increases.