alicia is pregnant and continues to smoke cigarettes throughout her pregnancy. she is likely to have a child diagnosed with adhd than a mother who does not smoke during pregnancy.

How is an environment able to support different varieties of organisms?

Dna is always read in the whereas rna is read in .

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity