Major conduit of energy in land and aquatic ecosystem is transferred through ______ and ______ respectively.
$GFC, DFC$
$PFC, GFC$
$DFC, GFC$
$GFC, GFC$
Suppose $2000 \mathrm{~J}$ of solar energy is incident on green vegetation. On the basis of $10 \;\%$ law of Lindeman. Identify $A, B$ and $C$
Flow of energy through various trophic levels in an ecosystem is unidirectional and non-cyclic. Explain.
Given below is a list of autotrophs and heterotrophs. With your knowledge about food chain, establish various linkages between the organisms on the principle of ‘eating and being eaten’. What is this inter-linkage established known as ?
Algae, hydrilla, grasshopper, rat, squirrel, crow, maize plant, deer, rabbit, lizard, wolf, snake, peacock, phytoplankton, crustaceans, whale, tiger, lion, sparrow, duck, crane, cockroach, spider, toad, fish, leopard, elephant, goat, nymphae, spirogyra.
Which of the following are called key industry animals?