Pelvic inflammatory disease (PID) may cause ____________.
A) endometriosis
B) blocked oviducts
C) multiple pregnancies
D) overstimulation
E) syphilis
Ans: B) blocked oviducts
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Respiration in birds differs from mammals in that birds have
a. lungs used for gas exchange only. b. a comparatively higher tracheal volume. c. air capillaries. d. air sacs for ventilation. e. all of these.
Mechanical deficiency in transmission of sound waves to the spiral organ is ________.
A. Meniere disease B. otosclerosis C. motion sickness D. conduction hearing loss E. sensorineural hearing loss
Ball and socket joints allow movement in all three planes and are the only ________ joints in the body.
Fill in the blank(s) with the appropriate word(s).
In birds, fresh air from the environment moves primarily into the
A) Lungs. B) Posterior air sacs. C) Anterior air sacs. D) Buccal cavity.