Answer:
D) Bacteria is the correct answer.
Step-by-step explanation:
The biotic factors include all the living components of the ecosystem.
They are classified into three groups:
- producers are also termed as (autotrophs): examples are Cyanobacteria, plants.
- consumers are also known as ( heterotrophs): examples are Elephants, Zooplankton, Tuna
- decomposers are also named as(detritivores) examples are Bacteria, Cockroaches, Termites..
thus bacteria is an example of a biotic factor.