Define the following:
Bio-accumulation

Explanation

**Step-by-Step Solution:**

1. **Understanding the Term "Bio":** The prefix "bio" refers to life or living organisms. It indicates that the concept we are discussing is related to biological processes.

2. **Defining Bioaccumulation:** Bioaccumulation is a phenomenon where certain substances, particularly foreign or toxic substances, accumulate in the tissues of living organisms over time.

3. **Continuous Accumulation:** This accumulation occurs continuously as the organism takes in these substances from its environment, such as through food, water, or air.

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