試題詳解

31. Which one of the following statements is NOT true?
(A) Not every organism is able to exchange gas, nutrients, and waste with its environment directly.
(B) Some small molecules can move between cells and their surroundings by diffusion.
(C)Both arthropods and human beings have closed circulatory systems.
(D) A circulatory system includes a circulatory fluid, a set of interconnecting vessels, and a muscular pump.
(E)All of the above.