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
In the following, there is no difference.
The trophic level of Cuscuta, Orobanche and Albugo is
The snakes are included under
Energy enters into the ecosystem through
Which of the cycle is concerned with energy flow in the ecosystem