Biradial symmetry is found in

Options

A. (a) Beroe
B. (b) Hydra
C. (c) Sponges
D. (d) Labeo

Answer

**Step-by-Step Solution:**

1. **Understand the Concept of Biradial Symmetry:**
- Biradial symmetry is a type of symmetry that combines features of both bilateral and radial symmetry. It occurs when an organism can be divided into equal halves along two planes.

2. **Identify the Characteristics of Biradial Symmetry:**
- In biradial symmetry, the first three divisions of the organism do not occur at right angles to each other. This means that the organism can be split into equal halves in two different ways.

3. **Examine the Options Provided:**
- A. Comb jellies (Phylum Tenophora)
- B. Hydra (Phylum Coelenterata)
- C. Sponges (Phylum Porifera)
- D. Labio (Phylum Physis)

4. **Analyze Each Option:**
- **Comb jellies (Phylum Tenophora):** These organisms exhibit biradial symmetry.
- **Hydra (Phylum Coelenterata):** This organism shows radial symmetry, not biradial.
- **Sponges (Phylum Porifera):** Sponges are asymmetrical, meaning they do not have a definite shape.
- **Labio (Phylum Physis):** This organism displays bilateral symmetry.

5. **Conclusion:**
- Based on the analysis, the correct answer is **A. Comb jellies**, as they belong to the phylum Tenophora and exhibit biradial symmetry.

**Final Answer: A. Comb jellies (Phylum Tenophora)**

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