MCQOPTIONS
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| 1. |
Which of the following is true about non-chordates? |
| A. | Heart is ventral. |
| B. | Gill slits are absent. |
| C. | A post-anal part (tail) is present. |
| D. | Notochord is present. |
| Answer» C. A post-anal part (tail) is present. | |