Which of the following food chain shows spindle shaped pyramid of number?
Grass $\rightarrow$ Insects $\rightarrow$ Frog
Phytoplankton $\rightarrow$ Zooplankton $\rightarrow$ Small fish
Tree $\rightarrow$ Birds $\rightarrow$ Hawks
Tree $\rightarrow$ Birds $\rightarrow$ Insects $\rightarrow$ Bacteria
Which is the correct sequence in the food chain in a grassland
In an ecosystem, there is flow of energy at different trophic levels. This is as follows :
Flow of energy through various trophic levels in an ecosystem is unidirectional and non-cyclic. Explain.
A wolf has just eaten a lamb when tiger saw the wolf attacked it and consumed it. The tiger is in ecological terms
Nepenthes is a