Ecosystem Question 33
33. Match the trophic levels with their correct species examples in grassland ecosystem.
[2020]
(A) Fourth trophic level $\qquad$ (i) Crow
(B) Second trophic level $\qquad$ (ii) Vulture
(C) First trophic level $\qquad$ (iii) Rabbit
(D) Third trophic level $\qquad$ (iv) Grass
Select the correct option
$\quad$ $\quad$ (A) $\quad$ (B) $\quad$ (C) $\quad$ (D) $\quad$
(a) $\quad$ (iii) $\quad$ (ii) $\quad$ (i) $\quad$ (iv) $\quad$
(b) $\quad$ (iv) $\quad$ (iii) $\quad$ (ii) $\quad$ (i) $\quad$
(c) $\quad$ (i) $\quad$ (ii) $\quad$ (iii) $\quad$ (iv) $\quad$
(d) $\quad$ (ii) $\quad$ (iii) $\quad$ (iv) $\quad$ (i) $\quad$
Show Answer
Answer : d
Hints & Solutions
(d) Grassland ecosystem is a terrestrial ecosystem. It includes various trophic levels. First trophic level $(T_1)$ - Grass Second trophic level $(T_2)$ - Rabbit Third trophic level $(T_3)-$ Crow Fourth trophic level $(T_4)-$ Vulture. If there is no producers (such as a plant), you cannot sea any primary consumers there. That is why trophic levels are important. They show availability of food/energy in a defined ecosystem, complexity of “who eats what”, and dependency of any one to others.
