Compare types of models. Which model of the human digestive system is most detailed? A. Photograph of digestive system
B. Dissected pig
C. Artist drawing
D. 2D computer-generated model

Individuals do not compete directly for resources, but are prey for the same predator

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

Which enzymes break down carbohydrates?