Question

Cycas and Pinus belongs to
A. Thallophyta
B. Bryophyta
C. Pteridophyta
D. None of the above

Answer 1

Hint: There are diverse types of plants on this planet. Some are seed-bearing and some are non-seed bearing plants. They all have different characteristics. Gymnosperms and angiosperms are the most diverse groups In spermatophyte division. One of them has naked seeds while the other has fruit with seeds.

Complete answer:
Spermatophytes are the plants with male and female cones. They usually show xerophytic properties like needle-shaped leaves, sunken stomata etc. They have tracheids but lack companion cells in the phloem. They include gymnosperms with naked seeds and angiosperms with fruit covering seeds. Cycas is a dioecious tree and pinus is a monoecious tree. Cycas belong to Cycadophyta, whereas, Pinus belong to Pinophyta. They both have vascular tissues for conducting food and water. They do not develop flowers and have naked seeds.
a. Thallophyta: They are plants with thallus. They are found in wet places. They do not have vascular bundles. For example Ulothrix, Chara, Spirogyra etc.
b. Bryophyta: They do not have vascular bundles. They are unbranched and have a dominating gametophyte stage. For example Hornwort, Liverwort etc.
Pteridophyta: They are vascular plants having spores. They are also called cryptogams. They have hidden means of reproduction. For example ferns and horsetails.
Hence, the correct answer is Option (D).

Note: Pinus and Cycas both belong to the group of gymnosperms. They do not bear flowers and have naked seeds. Fruit of this pine is formed from the seed which is edible. They are called chilgoza. Cycas belongs to the Cycads group of gymnosperms. They don't have flowers or fruits. They look like palm trees with no branches.