They are not primary producers in an aquatic ecosystem
Phytoplankton
Algae
Higher plants
None
Flow of energy declines from low to higher trophic level in ecosystem, is mainly explained by
Which of the following is a primary consumerin maize field ecosystem ?
Give differences : Food chain and food web
Choose incorrect statement
The number of trophic levels in a food chain is limited to $4$ or $ 5$ because