How many years has succession occurred so that the present-day communities are observed?

Category: QuestionsHow many years has succession occurred so that the present-day communities are observed?
Editor">Editor Staff asked 3 months ago

How many years has succession occurred so that the present-day communities are observed?
 
(a) 10 years
 
(b) 2 years
 
(c) Millions of years
 
(d) Hundreds of years
 
I had been asked this question in an international level competition.
 
I need to ask this question from Ecological Succession topic in division Ecosystem of Biology – Class 12

1 Answers
Editor">Editor Staff answered 3 months ago

Correct choice is (c) Millions of years
 
To explain: Ecological succession is the gradual change in the species composition of a given area which can be predicted. The communities we observe today are the result of millions of years of ecological succession.