Answer;
The pitch perception suggests that <span>different portions of the Basilar membrane are sensitive to sounds of different frequencies.
Explanation;
</span><span>According to the place theory; different portions of the basilar membrane are sensitive to sounds of different frequencies.
The base of the basilar membrane responds best to high frequencies and the tip of the basilar membrane responds best to low frequencies. Therefore, hair cells that are in the base portion would be labeled as high-pitch receptors, while those in the tip of basilar membrane would be labeled as low-pitch receptors.</span>
They are the skeletal muscle tissues
The correct answer is letter b. adrenaline secreted by the adrenal glands.
The heart pumps harder and blood pressure rises during a fight-or-flight response. This response is due to adrenaline secreted by the adrenal glands. Adrenaline is <span>a substance that is released in the body of a person who is feeling a strong emotion.</span>
