The accurate answer is:
Natural selection is based on Darwin’s observation that individuals most likely to survive and reproduce are those _____.Environment
Answer and Explanation:
The possible genotype and phenotype are as follows
Genotype Phenotype
BbR∧ - Barbed and not resistant to pesticide
BBRR - Barbed and not resistant to pesticide
bbR∧ - Smooth and not resistant to pesticide
bbRR - Smooth and not resistant to pesticide
bb∧∧ - Smooth and resistant to pesticide
Bb∧∧ - Barbed and resistant to pesticide
BB∧∧ - Barbed and resistant to pesticide
both species had growth in number within the same time period
Till this day We are always learning more and more so I think this can be helpful for future vaccines of diseases