TeachEngineering
Teach Engineering: Skeletal System
Through this unit, written for an honors anatomy and physiology class, students become familiar with the human skeletal system and answer the Challenge Question: When you get home from school, your mother grabs you, and you race to the...
Palomar Community College District
Palomar College: Residence Rules
This site from Palomar College provides an explanation of the different types of family residence patterns found in the world. Uses cultural examples and diagrams.
PBS
Tracing Ancestry With Mt Dna
The most common mtDNA ancestor is an African woman named African "Eve" or Mitochondrial Eve. Good explanation of mtDNA versus nuclear DNA through visual interactive family tree.