The changes that occur in successive seral stages to reach a climax community are
$I.$ changes in the diversity of species of organisms
$II.$increase in the number of species and organisms
$III.$ increase in the total biomass
Choose the correct option
$I\; and \;II$
$I \;and\; III$
$II\; and \;III$
$I, II \;and \;III$
Ephemerals are xerophytes that are
What is the medium by which carbon cycle takes place?
Sedimentary cycle having a small gaseous component also is found in
The xerophytic plants conserve water by storing it in
In carbon cycle, source of carbon to plants is