Explain Dr. Allison's observation-"The only way to do science is not to do experiments to give you an answer to what you think you ought to be. Instead, do the "killer experiment!"

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

During convection, less dense fluid rises and denser fluid sinks.