The is a cartilage flap that covers the larynx to prevent food entry during swallowing.
A. epiglottis
B. glottis
C. vocal cords
D. pharynx
E. esophagus
A. epiglottis
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The process by which chromosomes fail to
separate during meiosis is called
a. aneuploidy. b. trisomy. c. monosomy. d. nondisjunction. e. polyploidy
A cross between a black cat and a tan cat produces a tabby cat (black and tan fur together). What pattern of inheritance does this illustrate?
A.) sex-linked B.) multiple alleles C.) co-dominance D.) incomplete dominance
Porpoises and some bats find their prey using sound waves in the _________range.
A. supersonic B. infrasonic C. ultrasonic D. high-pitched, human ear-audible E. low-pitched, human ear-audible
Which of the following statements concerning infection with Toxoplasma is FALSE?
A) It is one of the world's most widely distributed protozoan parasites in humans. B) It is typically contracted by eating undercooked meat. C) Even though it can be transmitted across the placenta, it is harmless to the fetus. D) The majority of infected people are asymptomatic. E) It usually results in no permanent damage and is self-limiting.