.find out in the past there were some biotic and abiotic factors in the ecosystem you have selected but now they are not found if this is the situation find out their reason for their diminitation
Answers
In general, biotic factors are the living components of an ecosystem and are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores.
examples of different biotic factors
Examples of biotic factors include:
Grass as producers (autotrophs).
Mouse, deer, and owl as consumers (heterotrophs).
And earthworms as decomposers (detritivores).
To further understand the term "biotic factors", it's helpful to look at the meaning of the terms "biotic" and "abiotic."
Biotic means pertains to life. (Remember that Biology is the study of life?) Abiotic means pertaining to no life.
Abiotic examples include things that are not alive but you will find in an ecosystem such as air, gases, water, sand, stones and rocks.
there were some biotic and abiotic factors found in the past but they are not existing now it is because they were unable to evolute according to the changed surroundings.