How are species related to the concept of biodiversity

Contrast how pollination is different among gymnosperms and angiosperms.

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

What advantages does a pedigree have over a written passage?