Define symbosis. Give two examples.

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Symbiosis:**
- Symbiosis is a biological term that refers to a close and long-term interaction between two different biological species. In this interaction, both species involved benefit from the relationship.

2. **Example 1 - Mycorrhizae:**
- Mycorrhizae is an association between fungi and the roots of higher plants. In this relationship:
- The fungi assist the plant in absorbing essential nutrients (such as phosphorus and nitrogen) from the soil.
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