In how many of following relations the interacting species the closely together :-
Competition, Predation, Parasitism, Commensalism, Amensalism

Answer

To solve the question about how many of the given relationships involve interacting species that are closely together, we will analyze each of the five relationships: Competition, Predation, Parasitism, Commensalism, and Amensalism.

### Step-by-Step Solution:

1. **Competition**:
- In competition, two species compete for the same resources.
- Both species are negatively affected as they are fighting for limited resources.
- **Conclusion**: Not closely related (both are harmed).

2. **Predation**:
- In predation, one species (the predator) benefits by consuming another species (the prey), which is harmed in the process.
- **Conclusion**: Closely related (one benefits, one is harmed).

3. **Parasitism**:
- In parasitism, one species (the parasite) benefits at the expense of another species (the host), which is harmed.
- **Conclusion**: Closely related (one benefits, one is harmed).

4. **Commensalism**:
- In commensalism, one species benefits while the other is neither helped nor harmed.
- **Conclusion**: Closely related (one benefits, the other is neutral).

5. **Amensalism**:
- In amensalism, one species is harmed while the other is unaffected.
- **Conclusion**: Not closely related (one is harmed, the other is neutral).

### Final Count:
- The relationships that involve closely related interacting species are:
- Predation
- Parasitism
- Commensalism

Thus, **3 out of the 5 relationships involve species that are closely together**.

### Answer:
**3**

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