"if people who suffer from night blindness take vitamin a for two months, then they will be cured of their night blindness." which term best describes this statement? me plz! ; ) a. theory b. random guess c. conclusion d. hypothesis

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

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

Fill in the blank a scientific theory become a scientific law because only offer descriptions of the natural world, while offer robust explanations. 1. a) cannot b) can 2. a) laws b) theories 3. a) laws b) theories