They are all chromosomal mutations but if i had to choose it would be A
It is true because mitosis creates exact replicas with no genetic variation.
Most organelles are common to both animal and plant cells. However, plant cells also have features that animal cells do not have: a cell wall, a large central vacuole, and plastids such as chloroplasts.
Natural selection is a gradual process where biological traits become more or less common in a population depending on the usefulness of the trait.
C. Over time, species evolve by adapting to their environment.
Insecticide resistance developed through d. natural selection.