The use-dependent decrease in the ability of a muscle to generate force is called _____.
A. tetanus
B. aerobic fitness
C. fatigue
D. endurance
C. fatigue
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Nitrogen fixation in the hindgut of the termite is carried out by ________.
A. spirochetes B. deinococci C. cyanobacteria D. Bacteroides
A single pregnant female parakeet arrives in Hawaii early in its history. After millions of years her
descendants have successfully adapted to a variety of foods and habitats. This is the result of:
a. genetic drift b. adaptive radiation c. a higher rate of mutation d. punctuated equilibrium e. sympatric speciation
The above figure demonstrates
a. imprinting behavior. b. displaying instinctive behavior. c. feeding a social parasite. d. a learned behavior. e. all of these.
The ________ body cavity will contain the heart, lungs and spleen.
A. cranial B. ventral C. abdominal D. dorsal E. abdominopelvic