$A $ : Ecological pyramid of biomass is generally inverted in sea.
$R$ : Biomass of fishes far exceeds that of phytoplanktons.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Ecological pyramids are of
To show how many organisms are present at each level of a food chain, ecologists use a model called
Which of the following pyramid is always upright and can never be inverted?
The pyramid of number of a parasitic food chain in tree ecosystem is