The basic unit of structure and function in all living things is the nucleus. atom. cell. organelle.

During sunny hours, a large amount of build up between the hours of 1: 00-5: 00 pm. a. ozone b. mercury c. lead d. sulfuric acid

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?