"Stability of a community depends on its species richness." Write how did David Tilman show this experimentally.

Stability of a community depends upon its species diversity' Justify the statement.

Species diversity in a community depends upon:-

Species diversity in a community depends upon:-

A ul("stable community") shows high species dominance.

How did mining show impact on environment ?

Identify true or false statements. Correct each false statement to make it true. (i) Number of species in a community really matter to the functioning of the ecosystem. (ii) David Tilman proved that decreased diversity contributed to higher productivity. (iii) Rich biodiversity is not essential for ecosystem health but required for survival of human race of earth. (iv) Species which are dangerously harmful beings and their interests can be thought of deliberate extinction.

Identify true or false statements. Correct each false statement to make it true. (i) Number of species in a community really matter to the functioning of the ecosystem. (ii) David Tilman proved that decreased diversity contributed to higher productivity. (iii) Rich biodiversity is not essential for ecosystem health but required for survival of human race of earth. (iv) Species which are dangerously harmful beings and their interests can be thought of deliberate extinction.

How does friction depend upon the normal reaction ? How it can be experimentally verified ?