The correct sequence of plants in a hydrosere is
-
Oak → Lantana → scirpus→Pistia→Hydrilla→Volvox
-
Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak
-
Pista → Volvox → Scirpus → Hydrilla → Oak → Lantana
-
Oak → Lantana → Volvox → Hydrilla → Pistia → Scirpus
B.
Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak
The various stages in a hydrosere are well studied in ponds. Pools or lakes. The various stages of hydrosere are:
Phytoplankton stage, eg, some blue-green algae, green algae (volvox), diatoms and bacteria, etc.
Rooted submerged stage, eg Hydrilla Vallisneria, etc.
Floating stage, eg, Nelumbo, Nymphaea, etc. Some free-floating species are pisita, Azolla, Lemna, etc.
Red -swamp stage, eg, species of Cyperaceae and Gramineae.
Forest stage, eg, Tropical rain forests, mixed forests of Almus, Acer, Quercus (oak), tropical deciduous forests.
