The genome of phiX174 is ________.
A. double-stranded RNA
B. single-stranded RNA
C. single-stranded DNA
D. double-stranded DNA
Answer: C
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The wall that divides the nasal cavity is called the _____
a. nasodivision b. nares c. nasal septum d. nasal meatus.
Scientists have confirmed by carbon dating that seeds dormant for up to 2000 years can successfully germinate. Based on the requirements for germination, what research expedition should you join in order to retrieve some ancient but viable seeds?
A. A trip to Indonesia, where the civet cat eats and expels coffee beans, producing a gourmet coffee known as Kopi Luwak. B. A trip to the Irish marsh, where wet peat creates anaerobic conditions, and your colleagues hope to unearth a bog mummy. C. A trip to the Burgess Shale in Canada, where your paleontologist colleagues have found fossils from the Cambrian era. D. A trip to the arid Dead Sea region, where your historian colleagues have found a storeroom of wax-sealed jars. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about germination? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The specialized structure that stores pigments, water, inorganic ions and maintains turgor pressure is the
A. vacuole. B. peroxisomes. C. Golgi apparatus. D. vesicles. E. lysosomes.
If the epithelium that lines the air sacs of your lungs were to gain a layer of cells, which of the following would likely occur to the rate of oxygen diffusion?
A) Oxygen will diffuse across the lung surface more quickly. B) Oxygen will diffuse across the lung surface more slowly. C) Oxygen will diffuse across the lung surface out of, instead of into, the body. D) Oxygen will diffuse across the lung surface at a normal rate because it is only the shape of the cells that affect diffusion rate.