A biotic factor is all of the students in the classroom.
Hope this helps!!
the one that is considered a chemcial mutagen is : Tobacco Chemical mutagen refer to the substance that affected the DNA of those who consume the substancce or their offspring. Studies showed that consuming tobacco has proven to created DNA deformations for the fetus if it consumed by pregnant women.
That’d be the 2nd one from the right.
That population has the highest variety of organisms(individuals) compared to the other populations.
