How many gallons of blood are estimated to be pumped by the heart each day?

What is the relation ship between structure and function in an organism

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what