The ability of an organism to protect itself from the disease-causing germs is called______.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes the ability of an organism to protect itself from disease-causing germs.

2. **Identifying the Concept**: The concept we are looking for is related to the immune system, which is responsible for defending the body against pathogens like bacteria and viruses.

3. **Defining the Term**: The ability of an organism to protect itself from disease-causing germs is known as "immunity."

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