The organisms that live on other organisms for nourishment are called _______

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe organisms that obtain nourishment by living on or in another organism.

2. **Identifying the Relationship**: These organisms depend on a host for their survival and nourishment. This relationship is characterized by one organism benefiting at the expense of the other.

3. **Defining the Term**: The organisms that live on other organisms for nourishment are known as "parasites."

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