An open circulatory system usually consists of which of the following?
a. blood
b. pumping organ
c. arteries
d. veins
e. hemocoel
e
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Neutralizing antibodies are those that function by:
a. attaching to the surface of pathogens and contributing to their destruction by the lytic action of complement. b. binding to and blocking surface receptors for host cells. c. attaching to the surface of pathogens and making the pathogens more amenable to ingestion by phagocytic cells. d. attaching to the surface of pathogens and contributing to their destruction by che-motaxis.
The majority of the heat that is transferred from the earth to the atmosphere is transferred by:
a. radiation of heat into the atmosphere. b. evaporation of water. c. absorption by the lithosphere. d. reflection of heat into space.
In diabetes mellitus, the problems associated
with this disorder arise because
a. fat breakdown produces harmful waste products. b. protein breakdown produces harmful waste products. c. excess glucose results in harmful substances. d. all of these (a through c) occur. e. fat breakdown and protein breakdown produce harmful waste products
Which includes all of the components that make up the Organ of Corti?
A. The basilar membrane only B. Hair cells and associated neurons only C. The tectorial and basilar membranes D. Hair cells and the tectorial membrane E. Hair cells and the basilar and tectorial membranes