Describe Franklin’s research during World War I that earned her a doctorate in physical chemistry

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

What causes darkening of the skin as melanin production increases

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics