Larva of many annelids is Trochophore/Glochidium.

Explanation

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks about the type of larva found in many annelids, specifically whether it is a Trochophore or Glochidium.

2. **Understand Annelids**: Annelids are segmented worms that include earthworms, leeches, and polychaetes. They have distinct larval forms.

3. **Define Trochophore Larva**: Trochophore larvae are characterized by their translucent bodies and prominent ciliary bands. These larvae are typically found in a planktonic environment, meaning they float in water bodies and are mobile.

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