In many grocery stores, fresh fruits are sold in plastic bags dotted with holes so that they will not overripen. The main function of the holes is to
A) permit the fruit to drain after being washed.
B) facilitate diffusion of ethylene away from the fruit.
C) prevent buildup of CO2.
D) facilitate diffusion of O2 to the fruit.
Answer: B
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All of the following pertain to the atom Carbon-14 except it
A. has 6 protons. B. has 6 electrons. C. is an isotope of carbon. D. has 14 neutrons.
Birds are living representatives of which of the following lineages?
a. anapsids b. archosaurs c. lepidosaurs d. synapsids e. crocodilia
A competitive inhibitor will affect the ________ of an enzymatic reaction
A) Km B) Vmax C) S D) P E) both Km and Vmax
A cell that has a cell wall is undergoing cell division, and the following events are observed: the formation of a cell plate and the division of the cell into two daughter cells. What type of cell is being observed and what process(es) is it going
through? A) prokaryote; telophase of mitosis B) animal cell; telophase and cytokinesis of mitosis C) plant cell; telophase and cytokinesis of mitosis D) plant cell; telophase II of meiosis