Write any two consequences if decomposers are removed from the ecosystem.

Select the mismatched pair in the following and correct it.
$(a)$ Biomagnification — Accumulation of chemicals at the successive trophic levels of a food chain
$(b)$ Ecosystem — Biotic components of environment
$(c)$ Aquarium — $A$ man-made ecosystem
$(d)$ Parasites — Organisms which obtain food from other living organisms

Based on the medium of habitat,how many types of ecosystems are there?

Which organisms obtain nutrition from the dead bodies of plants and animals?

List two man-made ecosystems.

Which of the following statements is incorrect?