MCQOPTIONS
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| 1. |
From evolutionary point of view, tracheids and sieve cells are more primitive than tracheae and sieve tubes respectively. The angiosperms have: ? |
| A. | Tracheids, tracheae and sieve tubes |
| B. | Tracheae and sieve tubes |
| C. | Tracheae, sieve cells and sieve tubes |
| D. | Tracheids, tracheae and sieve cells |
| Answer» B. Tracheae and sieve tubes | |