1. where is the cftr protein found?
in heart cells
in cells lining the lungs
in every cell in the body
in muscle cells
in skeletal cells

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

What is the key to the recognition of codominance?