The correct sequence of plants in a hydrosere is
Oak $\rightarrow$ Lantana $\rightarrow$ Scirpus $\rightarrow$ Pistia $\rightarrow$ Hydrilla $\rightarrow$ Volvox
Volvox $\rightarrow$ Hydrilla $\rightarrow$ Pistia $\rightarrow$ Scirpus $\rightarrow$ Lantana $\rightarrow$ Oak
Pistia $\rightarrow$ Volvo $x \rightarrow$ Scirpus $\rightarrow$ Hydrill $\rightarrow$ Oak $\rightarrow$ Lantana
Oak $\rightarrow$ Lantana $\rightarrow$ Volvox $\rightarrow$ Hydrilla $\rightarrow$ Pistia $\rightarrow$ Scirpus
Which of the following ecosystem types has the highest annual net primary productivity?
Plants growing on sandstone are
Maximum contribution of $O_2$ is from
An individual transitional communities in ecological succession are termed as
$A$ : Niche become general and broader during biotic succession.
$R$ : Species diversity increases but organic matter is decreased.