Question

Match the following and select the correct option:

List - I	List - II
(a) Earthworm	(i) Pioneer species
(b) Succession	(ii) Detritivore
(c) Ecosystem service	(iii) Natality
(d) Population growth	(iv) Pollination

• A. a - iii, b - ii, c - iv, d - i
• B. a - ii, b - i, c - iv, d - iii
• C. a - i, b - ii, c - iii, d - iv
• D. a - iv, b - i, c - iii, d - ii

Answer 1

The correct option is B a - ii, b - i, c - iv, d - iii

• Earthworm is a detritivore. Detritivores break down detritus (dead and decaying organic matter) into smaller particles.
• The species that first colonized an area during succession is known as a pioneer species.
• Ecosystem services refers to the products of ecosystem processes that have been linked directly to the benefit of human well-being. Such services include purifying the air, providing water and food by maintaining the nutrient cycle, pollination of crops, and other services.
• Natality refers to the number of births during a given period in the population that are added to the initial density. It contributes to an increase in population density.

So, the correct answer is option D.