The answer is 'biped', i.e., an upright walking animal. The basin-shaped pelvis would support abdominal organs as well as mechanically assist locomotor and postural muscles. The whole at the bottom of a bipedal animal's skull through which t<span>he vertebral column attaches to the skull is called the foramen magnum.</span> The arched feet of a biped are to support increased weight.
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>
