devarshi-dt-logo

Question:

Match the following and select the correct option. Column 1 (a) Earthworm Column 2 (i) Pioneer species (b) Succession (ii) Detrivore (c) Ecosystem service (iii) Natality (d) Population growth (iv) Pollination

a=(ii),b=(i),c=(iv),d=(iii)

a=(i),b=(ii),c=(iii),d=(iv)

a=(iii),b=(ii),c=(iv),d=(i)

a=(iv),b=(i),c=(iii),d=(ii)

Solution:

Detrivores are heterotrophs that obtain nutrients by consuming detritus or decomposing plant and animal parts as well as faeces. Earthworm is a detrivore. In succession, pioneer species like lichen, algae, and fungi, as well as other abiotic factors like wind and water start to 'normalize' the habitat. Pollination is a type of ecosystem service which enhances the service provided by insects/birds through behavioral interaction. Natality is the crude birth rate or specific birth rate and is the greatest influence on a population's increase. Thus, the correct answer is option D.