question_answer

Which of following is/are trend (s) in ecological succession?

(i) An increase in complexity of species.

(ii) An increase in productivity.

(iii) An increase in community stability and species diversity.

(iv) A decrease in nonliving organic materials.

A) (i) and (iii)

B) (i) and (iv)

C) (i), (ii) and (iii)

D) (i), (ii), (iii) and (iv)