Most of the annelids are

Options

A. Terrestrial
B. Free living
C. Ectoparasites
D. Endoparasites

Answer

To answer the question "Most of the annelids are," we will follow these steps:

1. **Identify the Classification of Annelids**: Annelids belong to the phylum Annelida, which includes segmented worms. Common examples include earthworms and leeches.

2. **Understand the Habitat of Annelids**: Annelids can be found in various environments. They are both terrestrial (living on land) and aquatic (living in water), which includes marine habitats.

3. **Recognize the Types of Annelids**: Annelids can be classified into different categories based on their lifestyle. Some are free-living, while others are parasitic.

4. **Focus on Parasitic Annelids**: Among the annelids, some are ectoparasites, meaning they attach to the outside of a host organism to feed. A well-known example of an ectoparasitic annelid is the leech, which feeds on the blood of its host.

5. **Conclude the Answer**: Given the information, we can conclude that most annelids are ectoparasites, particularly highlighted by the example of leeches.

**Final Answer**: Most of the annelids are ectoparasites.

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