Which of the following is an example of regulated waste? O A. A used napkin
B. A used needle
C. A used blanket
D. A used bed sheet
SUBM

Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:

What causes darkening of the skin as melanin production increases

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.