Question

Choose the correct option.

$\begin{array}{cc}\text{Column A}& \text{Column B}\\ \left(a\right)\text{Primary consumer}& \left(i\right)\text{ecological role and space that an organism fills}\\ \left(b\right)\text{Biome}& \left(ii\right)\text{feeds directly on producers}\\ \left(c\right)\text{Niche}& \left(iii\right)\text{ecosystem where several habitats intersect}\\ \left(d\right)\text{Secondary consumer}& \left(iv\right)\text{feeds on primary consumer}\end{array}$

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

Answer 1

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

Food chain always begins with the producers. The organisms which feeds on producers are called primary consumers whereas the organisms which feeds on primary consumers are called secondary consumers.
The position of any living organism in relation to other living organisms and the role it is playing in a community is called its niche.
Certain regions of the earth has same climate and abiotic factors. Due to this, specific ecosystem prevails over vast areas and such large ecosystems are called biomes.