Ctenophores possess

Options

A. Cilia for locomotion
B. Cilia for filter feeding
C. Teeth for crushing
D. Teeth for filtering.

Answer

**Step-by-Step Solution:**

1. **Understanding Ctenophores**: Ctenophores, commonly known as comb jellies, belong to the phylum Ctenophora. They are marine invertebrates that exhibit a gelatinous body structure similar to that of jellyfish.

2. **Body Structure**: Ctenophores are classified as diploblastic organisms, meaning they have two primary germ layers: ectoderm and endoderm. They also have a layer of mesoglia, which is a gelatinous substance found between these two layers, but they lack a true mesoderm.

3. **Symmetry**: Ctenophores exhibit biradial symmetry, which is a form of symmetry that allows for two planes of symmetry.

4. **Locomotion**: The primary mode of locomotion in ctenophores is through the use of cilia. They possess unique structures called comb plates (or ctenes), which are rows of cilia that beat in a coordinated manner to propel the organism through the water.

5. **Conclusion**: Based on the characteristics of ctenophores, the correct answer to the question "Ctenophores possess" is that they possess cilia for locomotion.

**Final Answer**: Ctenophores possess cilia for locomotion.

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