Latest Basics News
Introduction to the Immune System and Disease
Figure 12.1 (a) This smallpox (variola) vaccine is derived from calves exposed…
Nervous System
As you read this, your nervous system is performing several functions simultaneously.…
The Circulatory System
The circulatory system is a network of vessels—the arteries, veins, and capillaries—and…
Circulatory and Respiratory Systems
Animals are complex multicellular organisms that require a mechanism for transporting nutrients…
