Students learn terms related to the immune system and define what acquired and passive immunities are and how they differ.

This resource goes with the lesson plan "Alien Encounters -- Transcription and Translation" . Students can use this resource to look up the DNA sequence for a specific disease of their choice, then enter the DNA sequence and find the amino acid sequence for the disease. Students can prepare a poster of a disease which would include information about the disease, the DNA sequence, RNA strand and amino acid chain.

Discover the circulatory system and play a game in this Flash Activity by guiding a red blood cell on its journey through the body. Learn about a doctor who helped infants with a certain type of heart defect or read the text-only version.

This research article studied age differences in multiple aspects of psychological well-being among midlife and older adults in Japan and the U.S. to test the hypothesis that older Japanese adults would rate aspects of their well-being more highly than older U. S. adults.

There are three lessons in this group. The first two provide students with the opportunity to learn about the circulatory system and conduct an experiment where they take their pulses after different types of activity. During the third lesson, a pediatrician explains how she checks a patient's heart and the ways that a healthy lifestyle (food and exercise) can keep students' hearts healthy.