In what order do a hawk, grass and rabbit form a food chain in a meadow?
Hawk $\rightarrow$ grass $\rightarrow$ rabbit
Grass $\rightarrow$ hawk $\rightarrow$ rabbit
Rabbit $\rightarrow$ grass $\rightarrow$ hawk
Grass $\rightarrow$ rabbit $\rightarrow$ hawk
Which is not a structural aspect of ecosystem?
Source of energy in an ecosystem is
Definitions / Explanation :
$(i)$ Saprotrophs
$(ii)$ Trophic level
A food web
Which of the following trophic levels are occupied by sparrow?