Question

Correct sequence of plants in a hydrosere is

• A. Pistia $\to$ Volvox $\to$ Scirpus $\to$Hydrilla $\to$ Oak $\to$ Lantana
• B. Oak $\to$ Lantana $\to$ Volvox $\to$ Hydrilla $\to$ Pistia $\to$ Scirpus
• C. Oak $\to$ Lantana $\to$ Scirpus $\to$ Pistia $\to$ Hydrilla $\to$ Volvox
• D. Volvox $\to$ Hydrilla $\to$ Pistia $\to$ Scirpus $\to$ Lantana $\to$ Oak

Answer 1

The correct option is D Volvox $\to$ Hydrilla $\to$ Pistia $\to$ Scirpus $\to$ Lantana $\to$ Oak

Hydrosere, originating in water(pond, pools, lakes, etc.) and starts with the colonization of some phytoplanktons which form the pioneer plant community, and finally terminates into a forest, which is a climax community together with their chief components of vegetation. The various stages together with their components of plant species of a hydrosere are phytoplankton stage, rooted submerged stage, rooted floating stage, reed swamp stage, marsh or sedge meadow stage, woodland stage and climax forest stage. Volvox is phytoplankton, Hydrilla is a rooted submerged plant, Pistia is rooted floating plant, Scirpus is reed swamp plant, Lantana is sedge meadow plant & oak is a woody tree.

So, the correct answer is 'D'.