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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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gh1991 gh1991
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12 years ago
1) What we perceive as the pitch of a sound is our sensory response to its
A) amplitude.
B) wavelength.
C) frequency.
D) intensity.
E) duration.


2) Which structures monitor rotational movements of the head?
A) cristae and the semicircular canals
B) maculae of the saccule
C) maculae of the utricle
D) B and C
E) all of the above

3) The central opening in the eye through which light passes is the
A) conjunctiva.
B) cornea.
C) pupil.
D) lens.
E) fovea.


4) The ciliary muscle helps to
A) control the amount of light reaching the retina.
B) control the shape of the lens.
C) control the production of aqueous humor.
D) move the eyeball.
E) none of the above


5) An area of the retina that contains only cones and is the site of sharpest vision is the
A) outer segment.
B) inner segment.
C) fovea.
D) optic disc.
E) tapetum lucidum.


6) A pigment molecule synthesized from vitamin A is
A) retinal.
B) opsin.
C) rhodopsin.
D) transducin.
E) cGMP.
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boeingboeing
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12 years ago
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gh1991 Author
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#2
12 years ago
thank you!!
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