Huntington's disease is a fatal disorder characterized by abnormal muscle movements called chorea. Based on your knowledge of the nervous system, which brain region would be disrupted by Huntington's disease?
A) thalamus
B) midbrain
C) caudate nucleus
D) corpus callosum
C
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Which of the following statements is FALSE regarding CO2 storage in a CAM plant?
A. CO2 is stored as a 4-carbon organic acid. B. CO2 is stored as a result of the activity of PEP carboxylase. C. The storage form is converted to CO2 when sunlight is available. D. CO2 storage allows stomata to be open at night. E. The storage form enters the Calvin cycle as phosphoenol pyruvate.
Approximately how much of the total U.S. trash is recycled?
a. one-half b. six-tenths c. one-third d. three-quarters e. less than one-tenth
Structure of typical long bone
What will be an ideal response?
Rickettsiosis is caused by Rickettsia rickettsii, a pathogen that
A) produces powerful exotoxins. B) provokes a severe immune response. C) interferes with the host cell's Krebs cycle. D) infects the lining of blood vessels and leads to leaking of plasma into tissue. E) lyses the host's cells.