Grade levels: Senior High (10-12)

The Neural Connection features examples of a polo player in action and a novice at a firing range to demonstrate how reflex actions and chemical responses are triggered directly by sensory stimuli.

Endocrine Control: Systems in Balance touches on the basics of pituitary function, effects on the adrenal gland, and the influence of biofeedback in regulating the reactions to stress.

Animal Reproduction and Development describes the continuation of life through the physical process of reproduction.

Populations and Communities explores various examples of species interaction, including predation, commensalism, mutualism, and competitive exclusion.

Proteins: Building Blocks of Life explains the structure of proteins, along with a unique property of DNA and proteins to replicate the genetic code over thousands of years.

Microevolution presents the theories of natural selection that further defined the origin of species.

Macroevolution describes the larger picture of species’ changes over time, their patterns and trends.

Fungi, Plants, and Animals explains the basic biological classification system and gives an evolutionary overview of the characteristics found in three of the five animal kingdoms: fungi, plants, and animals.

Plant Structure outlines the characteristics of plant tissues, the nature of plant growth, and the methods of water transport employed by various plants.