What type of cells is especially impacted by defects in the mitochondria?
a. lung cells
b. skin cells
c. heart cells
d. nerve cells
e. bone cells
ANSWER: d
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The tectorial and basilar membranes are located
within a. A. b. B. c. C. d. E. e. another unlabeled region of this figure.
Increased heart rate and blood pressure and unusually heavy sweating are symptoms of
a. hyperthyroidism. b. Grave's disease. c. acromegaly. d. hypothyroidism. e. Wilson's disease.
Intrasexual selection leads to the evolution of
A. novel parental care possibilities. B. structures in males that are used in combat with other males. C. bright plumages, for example, by males to attract females. D. nesting activities between the two parents.
All of the following physical factors affect the mechanics of pulmonary ventilation (breathing) EXCEPT _____________.
A. pulmonary blood flow B. lung compliance C. alveolar surface tension D. airway resistance