How does the lizard-and-cricket example explain competition in an ecosystem?

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

How does science influence the decisions made about social, economic, and political issues?

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer