List the three  sources of peripheral resistance: [a]    [b]   [c]  

Match the following vessel wall layers w/ the correct description: is exposed to the blood                                                                                      tunica externa anchors the vessels                                                                                           tunica media  regulated by the sympathetic nervous system                                                        tunica interna   continuous w/ endocardium of heart chambers may contain vasa vasorum can secrete vasodilators and vasoconstrictors active in vasomotion primarily smooth muscle composed of simple squamous epithelium 

This mechanism is where a cell transports a  large substance  or substance from a lower to a higher concentration (requiring energy). _____________

These mechanisms are where a cell transports a substance from a higher to a lower concentration (does not require energy).             A. _____________

Members of a given bacterial species can show many variations and referred to as    

ID the vessel #9  [a]  This vessel is the standard systemic vessel in which  [b]  is measured.

Of the following costs related to the development of natural resources, which one is not a part of depletion cost?

As blood travels from arteries to veins, farther from the heart ___ and ___ decline with distance.  

Blood flow through a capillary bed is regulated by pre-capillary sphincters.  

RNA is synthesized from one strand of DNA inside the nucleus of prokaryotic cells.