The expression of both alleles for a trait in a heterozygous individual (for example an individual with a and b blood alleles and type ab blood) illustrates

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:

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

Which charactistic is a property of water ?