Grasshoper, insect butterfly, mosquito.

Explanation

**Step-by-Step Solution:**

1. **Identify the Organisms**: We have three organisms to consider: Grasshopper, Butterfly, and Mosquito.

2. **Classify the Organisms**:
- Grasshopper: It is a herbivore, meaning it primarily feeds on plants.
- Butterfly: It is also a herbivore, as it feeds on nectar from flowers.
- Mosquito: It is an insect that feeds on blood, making it a blood-feeding parasite.
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