Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 2.1, Problem 4CC
MAKE CONNECTIONS Ø Explain how natural selection might have played a role in the evolution of species that are tolerant of Serpentine soils. (Review Concept 1.2.)
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CONTEXT
The earth is comprised of many different life forms, including plants, animals, humans, and
other organisms. These various life forms are highly interdependent and have formed important
systems that continually reshape the planet's landscapes, oceans, and atmospheres.
Booming human population growth over the last two centuries has put, and continues to put,
many of these life-sustaining systems out of balance and in serious jeopardy, endangering many of
the plant and animal species that human beings directly and indirectly depend upon for long-term
survival.
Bigger human populations naturally mean increases in human activities worldwide, leading to
changes in landscapes, oceans, atmospheres, and the path of human history. For example, as noted
in the benchmark of this lesson, human activities like reducing the amount of forest cover, increasing
the amount and variety of chemicals released into the atmosphere, and intensive farming, have
changed the earth's land, oceans, and…
6.3
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Chapter 2 Solutions
Campbell Biology (11th Edition)
Ch. 2.1 - MAKE CONNECTIONS Explain how table salt has...Ch. 2.1 - Is a trace element an essential element? Explain.Ch. 2.1 - Prob. 3CCCh. 2.1 - MAKE CONNECTIONS Explain how natural selection...Ch. 2.2 - Prob. 1CCCh. 2.2 - A nitrogen atom has 7 protons, and the most common...Ch. 2.2 - Prob. 3CCCh. 2.2 - Prob. 4CCCh. 2.3 - Why does the structure H C = C H fail to make...Ch. 2.3 - What holds the atoms together in a crystal of...
Ch. 2.3 - What holds the atoms together in a crystal of...Ch. 2.4 - Prob. 1CCCh. 2.4 - Which type of chemical reaction, if any, occurs...Ch. 2.4 - WHAT IF? Write an equation that uses the products...Ch. 2 - Compare an element and a Compound.Ch. 2 - DRAW IT Draw the electron distribution diagrams...Ch. 2 - In terms of electron sharing between atoms,...Ch. 2 - What would happen to the concentration of products...Ch. 2 - Level 1: Knowledge/Comprehension 1. In the term...Ch. 2 - Compared with 31P, the radioactive isotope 32P has...Ch. 2 - The reactivity of an atom arises from (A) the...Ch. 2 - Which Statement is true of all atoms that are...Ch. 2 - Which of the following statements correctly...Ch. 2 - Prob. 6TYUCh. 2 - The atomic number of sulfur is 16. Sulfur combines...Ch. 2 - What coefficients must be placed in the following...Ch. 2 - DRAW IT Draw Lewis dot structures for each...Ch. 2 - EVOLUTION CONNECTION The percentages of naturally...Ch. 2 - SCIENTIFIC INQUIRY Female luna moths (Actias luna)...Ch. 2 - Prob. 12TYUCh. 2 - Prob. 13TYU
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- INTERPRET DATA Examine Figure 56-24. How many of the sampled species are found in the nonserpentine soil? in the serpentine soil? in the ecotone? What generalization about ecotones do these data support? RESULTS AND CONCLUSION: The various plant species found in the two communities (yellow and blue) and in the ecotone between them (green) are shown in the graph. The ecotone had a greater richness than either adjoining community. SOURCE: Modified from C.D. White, VegetationSoil Chemistry Correlations in Serpentine Ecosystems, Ph.D. dissertation (University of Oregon, Eugene, 1971). Reprinted with permission of Dr. Charles D. White. Figure 56-24 Ecotones and species richness Note that the two fescues in the figure are different species.arrow_forwardPrediction versus hypothesis Homework • Unanswered Which of these is a prediction Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a When planted alongside garlic buds, strawberry plants are bug-free If garlic buds deter bugs that attack strawberry plants, then strawberry plants that are planted alongside garlic buds will host fewer bugs than those strawberry plants that are planted on their ownarrow_forwardHow is biosystematics important in the following fields? Explain. 1. Plant pest management and control2. Conservation Biology3. Medical biologyarrow_forward
- Describe and assess several ways in which high-inputindustrial agriculture can be beneficial for the environmentand several ways in which it can be detrimental.Now suggest several ways in which we might modifyindustrial agriculture to reduce its environmentalimpacts.arrow_forwardSCIENTIFIC INQUIRY • INTERPRET THE DATA A Minnesotagardener notes that the plants immediately bordering a walkwayare stunted compared with those farther away. Suspectingthat the soil near the walkway may be contaminated from saltadded to the walkway in winter, the gardener tests the soil. Thecomposition of the soil near the walkway is identical to thatfarther away except that it contains an additional 50 mM NaCl.Assuming that the NaCl is completely ionized, calculate howmuch it will lower the solute potential of the soil at 20°C usingthe solute potential equation:ΨS = -iCRTwhere i is the ionization constant (2 for NaCl), C is themolar concentration (in mol/L), R is the pressure constant[R = 0.00831 (L · MPa)/(mol · K)], and T is the temperature inKelvin (273 + °C).How would this change in the solute potential of the soilaffect the water potential of the soil? In what way would thechange in the water potential of the soil affect the movementof water in or out of the roots?arrow_forwardDiscussions about the likelihood of life on other planets often focus on 7 points their proximity to a sun-like star. How different might life on Earth be if the planet's distance from the sun were considerably greater? How will this affect the biogeochemical cycle and the energy flow in the ecosystem? Expound and Justify. For 3-5 sentences onlyarrow_forward
- MAKE CONNECTIONS Review the discussion of feedback regulation in Concept 1.1. Could effects of globalwarming on peatlands alter CO2 concentrations in waysthat result in negative or positive feedback? Explain.arrow_forwardGive typed full explanationarrow_forwardEVOLUTION CONNECTION Imagine taking the plant out ofthe picture in Figure 37.12. Write a paragraph explaining howsoil bacteria could sustain the recycling of nitrogen before landplants evolvedarrow_forward
- WRITE ABOUT A THEME: Energy and MatterDecomposition typically occurs quickly in moist tropicalforests. However, waterlogging in the soil of some moisttropical forests results over time in a buildup of organicmatter called “peat.” In a short essay (100–150 words), discussthe relationship of net primary production, net ecosystemproduction, and decomposition for such an ecosystem. AreNPP and NEP likely to be positive? What do you think wouldhappen to NEP if a landowner drained the water from atropical peatland, exposing the organic matter to air?arrow_forwardMAKE CONNECTIONS Refer to the discussion of oceanacidification in Concept 3.3. Ocean acidification andchanges in the distribution of C3 and C4 plants may seemto be two very different problems, but what do theyhave in common? Explain.arrow_forwardv and Test Pre xplain Concepts 3. Describe three adaptations of a polar bear and tell how each helps the anima survive in its environment. . Compare and contrast deciduous fores: and tropical rain forests. Write a description of the desert shown in the photograph. Use the termoarrow_forward
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