Embryology provides evidence for evolution because during their development, many organisms look similar, suggesting that very different organisms may have a common ancestor.
Answer:
It prevents their species from going extinct.
Answer:
Brown hair, dimples, and green eyes.
Explanation:
A phenotype is a description of your physical characteristics (observable characteristics). These are the things that you see when you look at someone.
A. is the answer, the closer the peaks are to eachother, the higher the frequency and energy.