Primary productivity in an ecosystem refers to the rate of generation of _________ .

Which of the following characteristics are seen in a stable community?

i. It is strong enough to withstand environmental disturbance and recovers quickly.

ii. It is resistant to invasive species.

iii. It exhibits constant change in biomass production over a period of time.

iv. It has more species diversity.

Which of the following is INCORRECT about Primary and Secondary ecological successions?

Given below are two statements.

Statement I - Biome constitute, a large regional terrestrial unit delimited by a specific climate zone having major vegetation zone and associated fauna.

Statement II - Biome is the fourth level of ecological hierarchy.

In light of above statements, select the correct answer from the option given below.