In this animated learning object, students examine the life cycles of a virus.

In this activity, you will review proper apparel for working in a doctor's office.

In this interactive object, learners read the characteristics of each stage of labor and delivery. They then identify the stages in a multiple-choice assessment.

Learners watch a brief video clip. They then follow step-by-step instructions on how to do a urine colony count and examine the criteria for determining if a colony count represents an infection. A brief quiz completes the object.

In this animated object, learners examine water molecules moving through a semipermeable membrane.

In this learning activity you'll study the structure of the cell membrane and construct it using the correct molecules.

In this animated object, learners examine processes that do not use ATP directly including hydrostatic pressure and facilitated diffusion with carrier proteins.

In this animated object, students observe how ATP energy is used to move substances across the cell membrane from an area of lower concentration to an area of higher concentration and when something too large needs to get in or out of a cell.

In this interactive object, learners identify the parts of an animal cell and its organelles.

Match the names and functions of each of the components of a prokaryotic cell. This is a companion to Learning object "Components of a Prokaryote"

This game tests your knowledge of the electrophysiology of neurons.

Students identify examples of potential and kinetic energy and their strength level