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Larval forms of echinoderms show the fol...

Larval forms of echinoderms show the following symmetry

A

Bilateral

B

radial

C

biradial

D

pentamerous radial

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Echinoderms**: Echinoderms are a unique phylum of marine animals that include starfish, sea urchins, and sea cucumbers. They exhibit different types of symmetry at different life stages. 2. **Identifying Larval Forms**: The larval forms of echinoderms are the early developmental stages before they transform into adults. It is important to note the characteristics of these larval forms. 3. **Symmetry in Larval Forms**: The larval forms of echinoderms exhibit bilateral symmetry. This means that if you were to draw a line down the middle of the larva, both halves would be mirror images of each other. 4. **Symmetry in Adult Forms**: In contrast, adult echinoderms display radial symmetry. This type of symmetry allows for the organism to be divided into similar halves by multiple planes. 5. **Conclusion**: The question specifically asks about the symmetry in larval forms of echinoderms. Based on the information gathered, the correct answer is that larval forms of echinoderms show bilateral symmetry. ### Final Answer: **Bilateral symmetry** is the symmetry found in the larval forms of echinoderms. ---
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