Radial symmetry is found in

Options

A. Larva of Echinodermates
B. Most of sponges
C. Molluscs
D. None of the above

Answer

To determine which organisms exhibit radial symmetry, let's analyze the options provided step by step:

1. **Understanding Radial Symmetry**:
- Radial symmetry means that an organism can be divided into two equal halves by multiple planes passing through the center. This type of symmetry is typically found in simpler organisms.

2. **Evaluating the Options**:
- **Option A: Larva of Echinodermates**:
- Echinodermates, such as starfish, exhibit bilateral symmetry in their larval stage and radial symmetry in their adult form. Since the question specifies "larva," this option is incorrect.

- **Option B: Most of Sponges**:
- Sponges belong to the phylum Porifera and are known to be asymmetrical. They do not exhibit radial or bilateral symmetry. Therefore, this option is also incorrect.

- **Option C: Mollusks**:
- Mollusks, such as octopuses and snails, typically exhibit bilateral symmetry. Hence, this option is incorrect as well.

- **Option D: None of the Above**:
- Since none of the previous options exhibit radial symmetry, this option is the correct answer.

3. **Conclusion**:
- After evaluating all the options, the correct answer is **None of the Above**. Radial symmetry is primarily found in organisms of the phylum Ctenophora, which is not listed among the options.