Name the grooves present in dinoflagellates.

Explanation

To answer the question about the grooves present in dinoflagellates, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: Understand that we are discussing dinoflagellates, which are single-celled eukaryotes.

2. **Understand Their Habitat**: Recognize that most dinoflagellates are marine plankton, which means they are primarily found in oceanic environments.

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