The answer is; genetic diversity
Genetic diversity is the number of genetic characteristics in a population. Genetic diversity is important in a population especially in its adaptability to a changing environment. The diversity is acted upon by natural selection and enables the population to evolve with the changing environment.
Independent: The second group is not given the drug.
Dependent: Dr. Smith wants to examine weather a new drug increases the maze running performance of older rats.
Constants: Dr. Smith teaches two groups of older rats to find a piece of tasty rat chow in the maze.
Hair shaft is the one that you will see on the body surface.
It is called the cell wall. It provides rigidity to the cell.
4. Peas gave characteristics that have two forms
