The taste known as sour is caused by
A) the presence of hydrogen ions.
B) hot materials.
C) sugars.
D) any kind of ions.
Correct Answer:
Verified
Q23: Endocrine function typically involves
A) coordinated activity of
Q24: Egg-laying in birds is under the control
Q25: The behavior of animals is under the
Q26: Sense organs
A) are responsible for perception.
B) detect
Q27: Which of the following senses involves molecules
Q29: Which of the following is not involved
Q30: The sense of smell
A) can respond to
Q31: The most sensitive portion of the retina
Q32: Rods differ from cones in that
A) cones
Q33: Colors are more difficult to see at
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