The following is a biotic factor that affects plant growth is:
Organic nutrients in the soil
Thus, option "A" is correct.
Soil is the base for plants to grow. A soil is termed as healthy soil which contains all the biotic and abiotic factors that are essential for the plant growth.
Biotic factors : Biotic factors include all the necessary living organisms that promote plant growth. Biotic factor mainly include bacteria , fungi , protozoa , algae etc.
Microorganisms made Symbiotic relationship with plant. They provide plant essential nutrients and plant provide them shelter.
Abiotic factors : Abiotic factors include non living factors such as air , water , sun light etc.
Thus, option "A" is correct.
To learn more about biotic factor click here:
https://brainly.com/question/27430655
#SPJ2
