In an ecosystem in abiotic components which of the following occur
Flow of energy
Cycling of materials
Consumers
Flow of energy and cycling of materials
Which of the following abundantly occurs in pond ecosystem
Energy enters in ecosystem through
The aquatic organism that can actively swim at will against the water current is
Standing state of the ecosystem is
$...A...$ is required for higher primary productivity. $...B...$ have the lowest primary productivity as the soil is deficient in moisture.
Choose the correct option for $\mathrm{A}$ and $\mathrm{B}$