NEET Biology question

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

(A)Tracheae and sieve tubesCorrect
(B)Tracheids, tracheae and sieve tubes
(C)Tracheae, sieve cells and sieve tubes
(D)Tracheids, tracheae and sieve cells

Answer: (A)

Solution

In angiosperms, the xylem consists of tracheids as well as vessels (tracheae), xylem fibres and xylem parenchyma, while the phloem is typically composed of sieve tube elements (not sieve cells, which are found only in

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Question ID VK-105183