33. which stimulus tests the absolute threshold of vision?
a) hair cells of the inner ear
b) electromagnetic energy
c) chemical substances in the air
d) a ticking watch in a quiet room
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What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !

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What sre the effects of hemolytic disease of a newborn