What energy percentage can be captured by the organisms of next trophic level
$20\%$
$30\%$
$90\%$
$10\%$
What is maximum in a pond-ecosystem
Which of the following is a primary consumerin maize field ecosystem ?
If forest area is reduced to half, which one of the following will be a long term effect
$A$ : Detritus food chain begins with detritus.
$R$ : Detrivores like fungi and bacteria are major decomposers in such food chains.
Why are oceans least productive ?