Why is the rate of assimilation of energy at the herbivore level called secondary productivity ?
Integration rate of energy done at level of habivores is called secondary productivity because the following trophic level consumers the biomass for nutrition which is received from primary productivity obtained by autotrophs.
In an ecosystem energy flows in
The number of trophic levels in an ecosystem are limited. Comment.
The number of trophic levels in a food chain is limited to $4$ or $ 5$ because
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In a food chain, lion is a