Question

Which of the following contain xylem vessels?
(a) Bryophyta
(b) Pteridophyta
(c) Both A and B
(d) Angiosperm

Answer 1

Xylem vessels consist of two cell types which are tracheary elements and tracheids. They conduct water in vascular plants. Xylem vessels play a major role in the conductive element.

Complete answer:
Angiosperms contain xylem vessels. Xylem vessels are the long tubes that help in the transportation of water throughout the plant and provide mechanical support to the plant which are formed by the end-to-end union of large numbers of cells that are shot, wide and dead. Monocots are angiosperm plants that contain only one embryonic leaf or cotyledon. They consist of flowering plants which are traditionally divided. They include about 60000 species and is the largest family of flowering plants such as the species of orchids with more than 20000 species.

Additional information:
Bryophytes: They are non-vascular land plants which consist of about 20,000 plant species and do not produce flowers or seed. Reproduction in bryophytes takes place through spores and is considered to be a paraphyletic group. Sporophytes produced are unbranched and the lifecycle gets dominated by the gametophyte stage.
Pteridophytes: They are vascular plants that disperse spores because they do not produce flowers and seeds and are known as cryptogams. They do not form a monophyletic group and are closely related to the seed plants. Pteridophytes share common ancestors and do not form a clade but constitute a paraphyletic group. The undergoes alternation of generation in which a diploid generation is followed by a haploid generation which produces gametes.

So, the correct answer is 'Angiosperms'.

Note:
Angiosperms appeared around 140 million years ago and are the first species to be known in the plant kingdom. Some angiosperms species of flowers are used as a source of food which consists of broccoli which is considered a vegetable and saffron which is a type of crocus flower.