Genes, Proteins, and Tissues
Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells.

Interacting Body Systems
Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

Feedback Mechanisms and Homeostasis
Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.