In your biology study group, one of your classmates is havin…

In your biology study group, one of your classmates is having difficulty understanding the difference between surface area and volume. He happens to be eating an orange as you are studying, and that gives you an idea of how you can explain the difference to him. You could say that

Your instructor has just presented you with an unknown solut…

Your instructor has just presented you with an unknown solution that you are charged to identify as a lipid, carbohydrate, protein, or nucleic acid. You start by running the Sudan Test. When the Sudan reagent is added to the unknown solution, the solution turns red. What can you conclude about your unknown solution?

As she is getting ready to start the microscope lab work, yo…

As she is getting ready to start the microscope lab work, your lab partner picks up her microscope and carefully holds it upright. As she carries it to your lab bench, she has one hand on the arm of the microscope and one hand on the ocular lenses. Is this correct?