List three ways in which an RNA molecule differs from a DNA molecule
What will be an ideal response?
RNA is normally single-stranded, whereas DNA is double-stranded. RNA has the sugar ribose, whereas DNA has deoxyribose. RNA uses the base uracil, whereas DNA uses thymine.
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The large number of alveoli in mammalian lungs, the numerous lamellae in fish gills, the papulae of echinoderms, and the extensive tracheal system of insects are all adaptations that optimize what factor in the formula for Fick’s Law of Diffusion?
A. D B. A C. d D. Dp 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 gas exchange? 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 movement of organic compounds throughout plants is described as ____
a. cohesion-tension b. source-to-sink c. facilitated transport d. active transport e. transpiration pull
The scientific method involves each of the following EXCEPT
A. systematic search for information. B. observation and experimentation. C. forming and testing possible solutions. D. formulation of laws and principles that control the observed facts.
Which part of the brain regulates balance and coordination?
A. medulla oblongata B. hypothalamus C. amygdala D. cerebellum E. occipital lobe