Ecosystem Ques 60
60. The correct sequence of plants in a hydrosere is:
[2009]
(a) Volvox $\to$ Hydrilla $\to$ Pistia $\to$ Scirpus Lantana $\to$ Oak
(b) Pistia $\to$ Volvox $\to$ Scirpus $\to$ Hydrilla $\to$ Oak $\to$ Lantana
(c) Oak $\to$ Lantana $\to$ Volvox $\to$ Hydrilla $\to$ Pistia $\to$ Scirpus
(d) Oak $\to$ Lantana $\to$ Scirpus $\to$ Pistia $\to$ Hydrilla $\to$ Volvox
Show Answer
Answer : a
Hints & Solutions
(a) The correct sequence of plants in a hydrosere is Volvox, Hydrilla, Pistia, Scirpus, Lanatana and Oak. A hydrosere is a plant succession which occurs in a fresh water lake. In time, an area of open fresh water such as a lake will naturally dry out, ultimately becoming woodland. During this change, a range of different landtypes such as swamp and marsh will succeed each other. The succession from open water to climax woodland is likely to take at least two hundred years.
BETA
