If parasitism is an example of +ve, -ve interaction , then competition is an example of

Options

A. `-ve,-ve` interaction
B. `-ve,` O interaction
C. `+ve, -ve` interaction
D. `+ve , +ve` interaction

Answer

To solve the question, we need to analyze the types of interactions between species in ecology, particularly focusing on parasitism and competition.

### Step-by-Step Solution:

1. **Understanding Parasitism**:
- Parasitism is a relationship where one organism (the parasite) benefits at the expense of another (the host).
- Example: A malarial parasite (Plasmodium) benefits by living in a host and causing harm (disease) to the host.
- This interaction is classified as a positive-negative interaction because the parasite gains (positive) while the host suffers (negative).

2. **Understanding Competition**:
- Competition occurs when two or more organisms (often of the same or closely related species) vie for the same limited resources, such as food, space, or mates.
- In this scenario, both species are negatively affected because they are competing for the same resources, which are limited.
- As a result, competition leads to a negative-negative interaction since both species experience harm due to the competition.

3. **Conclusion**:
- Based on the analysis, if parasitism is a positive-negative interaction, then competition is an example of a negative-negative interaction.

### Final Answer:
Competition is an example of a negative-negative interaction.