Describe how the hereditary information contained in genes within the cell’s DNA is expressed as proteins that direct the cell’s activities.
3.19 Trace the path of a single red blood cell from a capillary bed in your right hand to the capillary beds in your right lungs and back. What gases are exchanged? Where are they exchanged during this process?
3.27 Briefly describe the functions and major components of the central, peripheral, somatic, autonomic, sympathetic, and parasympathetic nervous systems. Which ones are subsets of others?