8. where does the sour taste come from in foods such as cheese and yogurt?

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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pls mark as brainliest

answer; a male inherits only one allele of the x-linked gene controlling hair color;

it is a learned trait

explanation:

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

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