The transfer or energy from organisms to organisms in a natural community establishes
Food chains
Biological control
Natural barriers
All the above
Identify the possible link “$A$” in the following food chain.
Plant $→$ Insect $→$ Frog $→$ “$A$” $→$ Eagle
In an ecosystem, the population of
In a lake, phytoplankton grow abundant in
In a food chain, lion is a
Food chain consists of