Looking for classes? Ksquare Career Institute, Bengaluru →
The correct sequence of plants in a hydrosere is
A
Oak → $Lantana$ → $Volvox$ → $Hydrilla$ → $Pistia$ → $Scirpus$
B
Oak → $Lantana$ → $Scirpus$ → $Pistia$ → $Hydrilla$ → $Volvox$
C
$Volvox$ → $Hydrilla$ → $Pistia$ → $Scirpus$ → $Lantana$ → Oak
D
$Pistia$ → $Volvox$ → $Scirpus$ → $Hydrilla$ → Oak → $Lantana$
Detailed Solution
A hydrosere is succession starting in water and ending in a mesic forest. Its stages are:
Phytoplankton stage (pioneers): e.g., $Volvox$
Submerged plant stage: e.g., $Hydrilla$
Submerged and free-floating plant stage: e.g., $Pistia$
Reed-swamp stage: e.g., $Scirpus$
Marsh-meadow and scrub stage: shrubs such as $Lantana$
Forest (climax) stage: trees such as oak
Correct sequence: $Volvox$ → $Hydrilla$ → $Pistia$ → $Scirpus$ → $Lantana$ → Oak
Phytoplankton stage (pioneers): e.g., $Volvox$
Submerged plant stage: e.g., $Hydrilla$
Submerged and free-floating plant stage: e.g., $Pistia$
Reed-swamp stage: e.g., $Scirpus$
Marsh-meadow and scrub stage: shrubs such as $Lantana$
Forest (climax) stage: trees such as oak
Correct sequence: $Volvox$ → $Hydrilla$ → $Pistia$ → $Scirpus$ → $Lantana$ → Oak