The interaction where only one species is benefitted and detrimental to the other species is

Options

A. Parasitism
B. Predation
C. Mutualism
D. 1 and 2

Answer

To solve the question regarding the type of interaction where only one species benefits while the other is harmed, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a specific type of interaction between two species where one benefits and the other is harmed.

2. **Identify the Options**: The options given are:
- 1) Parasitism
- 2) Predation
- 3) Mutualism
- 4) Both 1 and 2

3. **Define the Interactions**:
- **Parasitism**: In this interaction, one organism (the parasite) benefits at the expense of the other (the host), causing harm to the host.
- **Predation**: In this interaction, one organism (the predator) benefits by consuming another organism (the prey), which is harmed or killed in the process.
- **Mutualism**: This interaction benefits both species involved, which does not fit the criteria of the question.

4. **Analyze the Relationships**:
- From the definitions, both parasitism and predation show a plus-minus relationship (benefit to one and detriment to the other).
- Mutualism does not apply here as it is a plus-plus relationship.

5. **Select the Correct Answer**: Since both parasitism and predation fit the description of the interaction where one species benefits and the other is harmed, the correct answer is option 4) Both 1 and 2.

### Final Answer:
The interaction where only one species is benefitted and detrimental to the other species is **option 4) Both 1 and 2** (Parasitism and Predation).

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