In this learning object, you will learn about four blood osmolality and volume regulators, their sites of production, their sites of action, and the results of those actions.

In this interactive and animated object, learners examine the SUN VAT-40 battery starting and charging system tester. This learning object demonstrates the use of the tester in diagnosing conventional 12-volt automotive charging systems. It contains audio.

The learner will understand how a zener diode maintains a constant voltage as the resistance values of a load change.

The learner will understand proper safe handling and installation procedures for shielding gas cylinders.