what does the chemical makeup if the cells of an organism tell scientists about its evolutionary history

c. the initial amount of money placed in the savings account

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.

i think the answer is a.keratin is the pigment responsible for skin color.