When spontaneous process occurs then free energy of system
Decrease
Increase
Remains same
Either can increase or decrease
Most animals that live in deep oceanic waters are
Name any two organisms which can occupy more than one trophic level in an ecosystem.
Autotrophs
The number of trophic levels in a food chain is limited to $4$ or $ 5$ because
Given food web contains some missing organisms $A, B, C$ and $D$. Identify these organisms and select the correct answer