MCQOPTIONS
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| 1. |
Which of the following organisms belongs to Coelenterata (Cnidria) ? |
| A. | Planaria and liverfluke |
| B. | Sea urchin and sea cucumber |
| C. | Hydra and sea anemone |
| D. | Euplectella and sycon |
| Answer» D. Euplectella and sycon | |