Organs and organ systems are composed of cells and help to provide all cells with basic needs.
Learning Goal 6
Interactions among the senses, nerves, and brain make possible the learning that enables human beings to predict, analyze, and respond to changes in their environment.
For Grades: 6-8
Learning Goal 2
Toxic substances, some dietary habits, and some personal behavior may be bad for one's health. Some effects show up right away, others years later. Avoiding toxic substances, such as tobacco, and changing dietary habits increase the chance of living longer.