Which of the following symmetry is exhibited by Echinoderm larvae?

Options

A. Bilateral
B. Radial
C. Asymmetrical
D. Biradial

Answer

**Step-by-Step Solution:**

1. **Understanding Echinoderms**: Echinoderms are a group of marine animals that include starfish, sea urchins, and sea cucumbers. They exhibit different forms of symmetry at different life stages.

2. **Symmetry in Echinoderm Larvae**: Echinoderm larvae exhibit bilateral symmetry. This means that if you were to cut the larva down the middle (along a plane), you would get two identical halves.

3. **Symmetry in Adult Echinoderms**: In contrast, adult echinoderms typically exhibit radial symmetry. This means that their body can be divided into similar parts around a central axis.

4. **Identifying the Correct Option**: Given the question about the symmetry of Echinoderm larvae, the correct answer is bilateral symmetry.

5. **Eliminating Incorrect Options**:
- Radial symmetry applies to adults, not larvae.
- Asymmetry does not apply to Echinoderms; it is found in other groups like Porifera (sponges).
- Bi-radial symmetry is also not applicable in this context.

6. **Final Answer**: Therefore, the correct option regarding the symmetry exhibited by Echinoderm larvae is **Bilateral Symmetry**.

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