Discussion
Identify the plant kingdom with the help of the given features:
1- These are chlorophyll-bearing, simple, thalloid, autotrophic and largely aquatic (both fresh water and marine) organisms.
2- Its form and size is highly variable, ranging from colonial forms like Volvox and the filamentous forms like Ulothrix.
They reproduce by vegetative, asexual and sexual methods
Answer: A
The plant group described is the algae. Algae are chlorophyll-bearing, simple, thalloid and autotrophic, and they live largely in water, fresh or marine. The forms range from colonial ones such as Volvox to filamentous ones such as Ulothrix, and they reproduce by vegetative, asexual and sexual methods. Bryophytes (mosses and liverworts) are land plants that need moisture but have a more differentiated body. Pteridophytes (ferns) have vascular tissue, and gymnosperms are seed plants with naked seeds, so neither is a simple thalloid water group.
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