Which is the correct path that light takes from the environment to the photoreceptors of a human eye?
a. cornea ? pupil ? lens ? vitreous body ? retina
b. pupil ? cornea ? lens ? vitreous body ? retina
c. cornea ? pupil ? lens ? retina ? vitreous body
d. lens ? pupil ? cornea ? vitreous body ? retina
e. cornea ? lens ? pupil ? vitreous body ? retina
ANSWER: a
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Which of the following CANNOT undergo microevolution?
A. a poison ivy vine growing up a tree B. the cactus finches of the Galápagos Islands C. the Venus Flytraps in Green Swamp in southeastern North Carolina D. the corals in a reef off the east coast of Australia E. the fire ants endemic to South America
Forced inhalation is indicated by ____
a. A b. B c. C d. D e. E
Sir Alexander Flemming
A) coined the term chemotherapy B) discovered salvarsan in 1910 C) discovered the antibiotic penicillin D) accomplished two of the above.
Endospores can be killed by
A. glutaldehyde for 8 or more hours. B. ethylene oxide for 3 or more hours. C. incineration. D. dry heat at 170°C for 2 hours. E. All of these choices are correct.