Interaction in which either one or both participating species are harmed such interactions are called _______.

Answer

To solve the question regarding the type of interaction in which either one or both participating species are harmed, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Interactions**:
- Interactions between species can be classified into various types based on their effects on the species involved.

2. **Identify Negative Interactions**:
- The question specifically asks for interactions where one or both species are harmed. This indicates we are looking for negative interactions.

3. **Differentiate Between Types of Negative Interactions**:
- **Amensalism**: This is a type of interaction where one species is harmed while the other is unaffected. It is represented as (-, 0).
- **Competition**: This is a type of interaction where both species are harmed. It is represented as (-, -).

4. **Conclude the Answer**:
- Since the question encompasses both scenarios where either one or both species are harmed, the broader term that includes both amensalism and competition is **negative interaction** or **detrimental interaction**.

### Final Answer:
The interaction in which either one or both participating species are harmed is called **negative interaction** or **detrimental interaction**.

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