Nereis is
(a) Carnivorous
(b) Herbivorous
(c) Sanguivorous
(d) Parasitic

Options

A. Carnivorous
B. Herbivorous
C. Sanguivorous
D. Parasitic

Answer

To determine the dietary classification of Nereis, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: Nereis is a genus of marine polychaete worms that belong to the phylum Annelida.

2. **Understand the Feeding Habits**: Nereis is known to feed on small living organisms as well as fragments of dead organisms. This indicates that it consumes a variety of food sources.

3. **Evaluate the Options**:
- **(a) Carnivorous**: This option suggests that Nereis feeds on other animals. Given that Nereis consumes small live organisms, this option is plausible.
- **(b) Herbivorous**: This option indicates feeding on plants. Since Nereis does not feed on plant matter, this option is incorrect.
- **(c) Sanguivorous**: This option refers to organisms that feed on blood. Nereis does not suck blood, so this option is also incorrect.
- **(d) Parasitic**: This option implies that Nereis lives off another organism, typically harming it. Nereis does not exhibit parasitic behavior, making this option incorrect.

4. **Conclusion**: Based on the feeding habits of Nereis, the correct classification is that it is carnivorous, as it primarily feeds on small live organisms and dead organic matter.

### Final Answer:
(a) Carnivorous

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