148. 正常毛髮中水份含量約占
(A)4％
(B)10％
(C)15％
(D)20％。

148. 正常毛髮中水份含量約占 (A)4％(B)10％(C)15％(D)20％。

148. 正常毛髮中水份含量約占 (A)4％(B)10％(C)15％(D)20％。

148. 正常毛髮中水份含量約占 (A)4％(B)10％(C)15％(D)20％。

149. 理想洗髮劑的酸鹼度約在(A)2.8(B)4.5(C)6.5(D)9.5左右。

150. 保養頭髮的機具是(A)吊式吹風(B)蒸氣護髮機(C)烘乾機(D)手持吹風機。

1. A human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb. To travel from the artery to the thumb and then back to the left ventricle, this red blood cell must pass through _______ .(A) one capillary bed (B) two capillary beds (C) three capillary beds (D) four capillary beds

2. Blood is pumped at high pressures in arteries from the heart to ensure that all parts of the body receive adequate blood flow. Capillary beds, however, would hemorrhage under direct arterial pressures. How does the design of the circulatory network contribute to reducing blood pressure to avoid this scenario? (A) Blood flow through the capillaries is essentially frictionless, and this reduces the amount of pressure on their walls. (B) The total cross-sectional diameter of the arterial circulation increases with progression from artery to arteriole to capillary, leading to a reduced blood pressure. (C) Fluid loss from the arteries is high enough that pressure drops off significantly by the time blood reaches the capillaries. (D) Capillary beds have the thickest walls of any blood vessel to resist these high pressures.

3. Which of the following would you expect of a species that has a high resting cardiac output? (A) The animal is likely small and compact, without the need to pump blood very far from the heart. (B) The species likely has very wide-diameter veins. (C) The animal likely has a very long distance between its heart and its brain. (D) The animal likely has a relatively inactive lifestyle.

4. If you are hiking through the desert for several days, one would pack which of the following to ensure proper hydration? (A) a drink with a combination of water and electrolytes (B) caffeinated beverages (C) bottled water kept at room temperature (D) bottled water that had been frozen to ensure that it would be as cold as possible

5. A decrease of blood pH from 7.4 to 7.2 causes hemoglobin to _______ .(A) release all bound carbon dioxide molecules (B) bind more oxygen molecules (C) decrease its binding of H+ (D) give up more of its oxygen molecules

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