Bioaccumulation is defined as what?

Bioaccumulation is defined as what?

• A. The accumulation of a substance, such as a toxic chemical, in various tissues of a living organism
• B. The release of toxins into the environment
• C. The breakdown of chemicals in the liver
• D. The dispersion of toxins in water

Answer: (A)

Bioaccumulation is the buildup of a substance, such as a toxic chemical, in the tissues of a living organism over time because uptake exceeds elimination. This happens when the organism absorbs or ingests the substance faster than it can be removed, often with persistent, fat‑soluble chemicals accumulating in fatty tissues or vital organs. This is different from releasing toxins into the environment, which describes pollution rather than internal buildup; or from breaking down chemicals in the liver, which is metabolism; or from spreading toxins through water, which is distribution.

Bioaccumulation is the buildup of a substance, such as a toxic chemical, in the tissues of a living organism over time because uptake exceeds elimination. This happens when the organism absorbs or ingests the substance faster than it can be removed, often with persistent, fat‑soluble chemicals accumulating in fatty tissues or vital organs. This is different from releasing toxins into the environment, which describes pollution rather than internal buildup; or from breaking down chemicals in the liver, which is metabolism; or from spreading toxins through water, which is distribution.