Question

The correct sequence of plants in a hydrosere is?
A. Volvox → Hydrilla → Pistia → Scirpus → Carex → Quercus
B. Pistia → Volvox → Scirpus → Hydrilla → Quercus → Carex
C. Quercus → Carex → Volvox → Hydrilla → Pistia→ Scirpus
D. Quercus → Carex → Scirpus → Pistia → Hydrilla → Volvox

Answer 1

Hint: Hydrosere, are plants that occur in water bodies like a pond, rivers, seas, and oceans. Their classification is starting with the settlement of a certain phytoplankton that makes up the microscopic plant community and ends up in a forest that is a climax group with its major vegetation components. We have to search from microscopic plants (phytoplankton) to the higher woodland stages, and climax forest stages of major vegetation components that survive underwater.

Complete answer: Hydrosere, occurring in water (pond, rivers, streams, etc.) and starting with the settlement of certain phytoplankton that makes up the revolutionary microscopic plant community, ends up in a forest that is a climax group with its major vegetation components. The phytoplankton stage, rooted underwater stage, rooted aquatic stage, reed bog stage, marsh or sedge meadow stage, woodland stage, and climax forest stage are the various stages along with their components of a hydrosere plant type underwater. Volvox is phytoplankton, Hydrilla is a submerged plant with roots, Pistia is a floating plant with roots, Scirpus is a marsh plant with ferns, Carex and Quercus (oak) are tropical rain forest plantations.
Therefore, the correct answer is (A), i.e., Volvox → Hydrilla → Pistia → Scirpus → Carex → Quercus

Note: The hydrosere, occurring in water bodies (pond, rivers, seas, and oceans), and starting with the settlement of certain microscopic plant community, i.e., phytoplanktons, ending up in a forest that is a climax group with its major vegetation components that generally grow in tropical rain forests.