The louder a pitch, the more the basilar membrane vibrates.

Answer the following statement true (T) or false (F)


True

Loud noises cause the fluid within the vestibular canal to exert more pressure and the basilar membrane to vibrate to a greater extent.

Biology & Microbiology

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Fungi, together with bacteria, are the principal _________ in the biosphere.  

Fill in the blank(s) with the appropriate word(s).

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During swallowing food, which structure moves downward to prevent food from entering the trachea?

a. larynx
b. pharynx
c. glottis
d. epiglottis
e. bronchus

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A bacterial smear stained with a Gram's stain is best viewed using a

A. dark field microscope B. light microscope C. electron microscope D. fluorescence microscope E. phase contrast microscope

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Which statement about plant hormones is true?

A) Plant hormones are produced in very small concentrations. B) Plant hormones mainly affect reproductive processes. C) A hormone typically has a single, specific effect on all cells. D) Plant hormones play a vital role in photosynthesis.

Biology & Microbiology