The answer is c.they will prevent root diseases caused by other bacteria.
Endosymbiosis refers to the co-existence of living matter where one organism lives within the body or within the cells of another organism.
Nucleic acids are made up of nucleotides
Describing the shape of a spider web observed is an example of nominal measurement.
<h3>What is Nominal measurement?</h3>
This is a type of measurement in which the data or variables are named without any specific order unlike ordinal measurement.
The shape of the web was described without any emphasis on the order which is why it was chosen as the most appropriate choice.
Read more about Nominal measurement here brainly.com/question/13267344
#SPJ1