Epidermal cells synthesize this vitamin when exposed to sunlight. epidermal cells synthesize this vitamin when exposed to sunlight. vitamin a vitamin d3 vitamin c vitamin e vitamin d2

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi