A succulent xerophyte is
$A$ : Niche become general and broader during biotic succession.
$R$ : Species diversity increases but organic matter is decreased.
In a food chain, the total amount of living material is depicted by
Which of the following ecosystems will be more productive in terms of primary productivity ? Justify your answer. A young forest, a natural old forest, a shallow polluted lake, alpine meadow.
Sometimes due to biotic/abiotic factor the climax remain in a particular seral stage (pre climax) without reaching climax. Do you agree with this statement. If yes give a suitable example.