Which of the following is a group of chlorophyll-bearing, simple, thalloid, autotrophic and primarily aquatic (both freshwater and marine) organisms?

Correct option is B

The correct answer is: (b) Algae
Explanation:
· Algae are simple, chlorophyll-bearing autotrophs that mostly live in water (both freshwater and marine).
· They lack true roots, stems, and leaves and are mostly thalloid (body not differentiated into root/stem/leaves).
· They are aquatic and photosynthetic, hence a primary producer in aquatic ecosystems.
Information Booster:
· Algae include species like Chlamydomonas, Spirogyra, Ulva, and Sargassum.
· They reproduce through vegetative, asexual, and sexual means.
· Algae are classified into three main types: Green (Chlorophyceae), Brown (Phaeophyceae), and Red (Rhodophyceae).
· Algae produce a large portion of Earth’s oxygen through photosynthesis.
· They are used in food industry, biofertilizers, and biofuels.
Additional Information:
· Bryophytes: Non-vascular plants that grow in moist environments, like mosses and liverworts.
· Pteridophytes: Vascular plants (e.g., ferns) with true roots, stems, and leaves, but reproduce via spores.
· Gymnosperms: Seed-producing vascular plants (e.g., pine), with naked seeds not enclosed in fruit.