Question

From evolutionary point of view, hydroids and sieve cells are more primitive than tracheae and sieve tubes respectively. The angiosperms have

• A. Tracheae and sieve tubes
• B. Tracheids, tracheae and sieve tubes
• C. Tracheids, sieve cells and sieve tubes
• D. Tracheids, tracheae and sieve cells

Answer 1

The correct option is A Tracheae and sieve tubes

Vessels or trachea are present in most of the angiosperms and also in certain lower plants like Marsilea and Selaginella. Tracheids are found in pteridophytes, most of the gymnosperms and a few angiosperms. Sieve cells are found in pteridophytes and gymnosperms. Sieve tube cells are seen only in angiosperms.
So, the correct answer is 'trachea and sieve tubes'