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1. All of the following are stimulated by the sympathetic nervous system EXCEPT
2. The calypso orchid, Calypso bulbosa, grows in close association with mycorrhizae fungi. The fungi penetrate the roots of the flower and take advantage of the plant's food resources. The fungi concentrate rare minerals, such as phosphates, in the roots and make them readily accessible to the orchid. This situation is an example of
3. Which of the following are characteristics of both bacteria and fungi?
4. A sustained decrease in circulating Ca2+ levels might be caused by decreased levels of which of the following substances?
5. The synthesis of new proteins necessary for lactose utilization by the bacterium E. coli using the lac operon is regulated
6. Which of the following statements about trypsin is NOT true?
7. In DNA replication, which of the following does NOT occur?
8. A change in a neuron membrane potential from +50 millivolts to -70 millivolts is considered
9. The energy given up by electrons as they move through the electron transport chain is used to
10. If a photosynthesizing plant began to release 18O2 instead of normal oxygen, one could most reasonably conclude that the plant had been supplied with
11. All of the following statements describe the unique characteristics of water EXCEPT
12. Chemical substances released by organisms that elicit a physiological or behavioral response in other members of the same species are known as