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A person changes from looking at a distant tree to… | StemPy Lab
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A person changes from looking at a distant tree to reading a book held 25 cm away. Which change takes place in the eye?
Biology
Hard
High School (11–12)
Human Body › Nervous System and Sense Organs
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StemPy Lab
A person changes from looking at a distant tree to reading a book held 25 cm away. Which change takes place in the eye?
The retina moves forward to meet the rays.
The ciliary muscle contracts and the lens becomes thicker.
The iris muscles make the pupil wider so that the lens becomes thicker.
The ciliary muscle relaxes and the lens becomes thinner.
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← The figure shows a cross section of one turn of the cochlea with letters. P is the upper chamber, which ends at the oval window. Q is the middle chamber, filled with endolymph. R is the lower chamber, which ends at the round window. S is the membrane on which the organ of Corti rests. T is the thin elastic membrane above the hair cells. Which option names them correctly?
A tone of very high pitch is most likely to make the basilar membrane vibrate most at which place? →
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Human Body › Nervous System and Sense Organs
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