The 5' end of the DNA molecule is considered the , while the 3' end of the DNA molecule is considered the . a. end, middle
b. beginning, end
c. end, beginning
d. middle, end

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

What part of the brain is highlighted in the diagram below?

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body