Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133909029
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Chapter 2, Problem 15TYK
This chapter explains how the emergent properties of water contribute to the suitability of the environment for life. Until fairly recently, scientists assumed that other physical requirements for life included a moderate range of temperature, pH, and atmospheric pressure. That view has changed with the discovery of organisms known as extremophiles, which have been found flourishing in hot, acidic sulfur springs and around hydrothermal vents deep in the ocean. What does the existence of life in such environments say about the possibility of life on other planets?
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Chapter 2 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
Ch. 2 - Fill in the blanks in this concept map to help you...Ch. 2 - Create a concept map to organize your...Ch. 2 - Changing the _____ would change it into an atom of...Ch. 2 - A solution at pH 6 contains _____H+ than the same...Ch. 2 - Most of the unique properties of water result from...Ch. 2 - A can of cola consists mostly of sugar dissolved...Ch. 2 - Prob. 7TYKCh. 2 - In what way does the need for iodine or iron in...Ch. 2 - Use carbon-12, the most common isotope of carbon,...Ch. 2 - In terms of electron sharing between atoms,...
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- Organisms that live in fresh water are almost always hypertonic to their environment .In what way is this a serious problem? How could some organisms cope with this problem ?arrow_forwarda. Is there a microbe that could grow on a medium that contains onlythe following compounds dissolved in water: CaCO3, MgNO3,FeCl2, ZnSO4, and glucose? Defend your answer.b. A useful mnemonic device for keeping track of major elementsrequired by most organisms is: C HOPKINS Ca Fe, Na ClMgood. Read aloud, it becomes “See Hopkin’s Cafe, NaCl (salt)M good!” What does each letter stand for?arrow_forwardRadioactive isotopes (radioisotopes) of elements are commonly used in biological experiments as tracers to follow and detect molecules of interest. For example, photosynthetic intermediates produced during carbon dioxide conversion to sugars were detected by exposing algae to carbon dioxide containing a radioactive form of carbon. This radioactive carbon could be rapidly detected in molecules produced by the algae during carbon fixation and sugar production. Why can scientists substitute radioisotopes for isotopes commonly found in cells when conducting experiments? Select an Answer O A. Radioisotopes of an element differ only in the number of neutrons, so therefore they behave the same way chemically as the isotopes that occur in cells. B. Compounds containing radioisotopes are not acted upon by enzymes, so the radioisotopes will therefore not interfere with normal cellular processes. O C. Radioisotopes contain additional protons, so they are heavier than the nonradioactive isotopes…arrow_forward
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- Based on our current knowledge of biology on Earth, above what temperature (in °C) would biological activity become impossible, and why? Based on our current knowledge of extremophiles, below what temperature (in °C) would the last surviving organisms cease their activity?arrow_forwardWhy not all ergastic substances are metabolically inert?arrow_forward56 57 please answer allarrow_forward
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