Question

A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to

• A. Monocots
  
• B. Pteridophytes
• C. Gymnosperms
• D. Bryophytes

Answer 1

The correct option is D Bryophytes

Pteridophytes

Pteridophytes are the first terrestrial vascular plants made up of true roots, stems and leaves.

Gymnosperms

Gymnosperms are large sized plants (the prominent sporophytic phase being diploid) differentiated into roots, stems and leaves.

Monocots

Monocots are the angiosperms which produce seeds having single cotyledons. Their main plant body is diploid.

Bryophytes

Some of the bryophytes (liverworts and hornworts) have flat green thalloid bodies, while others (mosses) have a body which is differentiated into stem, leaves and rhizoids. The bryophytes have gametophyte stages as their predominant stage which are haploid. The male gametes are motile and need water for fertilisation.

Final answer

d. Bryophytes