Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 38, Problem 16PIAT
SOCIETY Global bee populations have been declining over the past decade. What impact might this have on the world’s human population?
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Chapter 38 Solutions
Biological Science (6th Edition)
Ch. 38 - 1. What happens when double fertilization...Ch. 38 - 2. CAUTION In angiosperms, are sperm and eggs...Ch. 38 - Prob. 3TYKCh. 38 - Prob. 4TYKCh. 38 - 5. Why is the emergence of the radicle an...Ch. 38 - What are the advantages and disadvantages of...Ch. 38 - Prob. 7TYUCh. 38 - Prob. 8TYUCh. 38 - Prob. 9TYPSSCh. 38 - 10. MODEL Make a sketch of a simplified flower...
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- This question is based on the evolution of mating systems in different species. I'm mostly having trouble understanding what is being asked in question 3.arrow_forwardIn terms of Darwinian evolution, explain how natural selection favors the Monarchs association with the milkweed. Your reply should include: • a description of what natural selection is • possible hypothesis of how it applies to the Monarcharrow_forwardDuring the 1850s tree trucks became covered with smoke and black soot from industry why did the number of dark colored pepper moths increasearrow_forward
- Iguana Decline In 1987, Martin Wikelski began a long-term study of marine iguanas in the Calapgos Islands. He marked iguanas on two islandsGenovesa and Santa Feand collected data on how their body size, survival, and reproductive rates varied over time. He found that because iguanas eat algae and have no predators, deaths usually result from food shortages, disease, or old age. In January 2001, an oil tanker ran aground and leaked a small amount of oil into the waters near Santa Fe. FIGURE 44.17 shows the number of marked iguanas that Wikelski and his team counted in their study populations just before the spill and about a year later. FIGURE 44.17 Shifting numbers of marked marine iguanas on two Galpagos islands. An oil spill occurred near Santa Fe just after the January 2001 census (orange bars). A second census was carried out in December 2001 (green bars). 3. Wikelski concluded that changes on Santa He were the result of the oil spill, rather than sea temperature or other climate factors common to both islands. How would the census numbers be different from those he observed if an adverse event had affected both Islands?arrow_forwardIguana Decline In 1987, Martin Wikelski began a long-term study of marine iguanas in the Galpagos Islands. He marked iguanas on two islandsGenovesa and Santa Feand collected data on how their body size, survival, and reproductive rates varied over time. He found that because iguanas eat algae and have no predators, deaths usually result from food shortages, disease, or old age. In January 2001, an oil tanker ran aground and leaked a small amount of oil into the waters near Santa Fe. FIGURE 44.3 shows the number of marked iguanas that Wikelski and his team counted in their study populations just before the spill and about a year later. FIGURE 44.3 Shifting numbers of marked marine iguanas on two Galpagos islands. An oil spill occurred near Santa Fe just after the January 2001 census (orange bars). A second census was carried out in December 2001 (green bars). How much did the population size on each island change between the first and second census?arrow_forwardIn the post-industrial forest (dark forest), what did you notice about the bird's likelihood of catching light colored moths compared to dark colored moths? Question 6 options: The chance for catching light vs dark-colored moths was close to 50:50. They were less likely to catch light colored moths. The were less likely to catch dark colored moths.arrow_forward
- In primates, monogamy: is related to dispersed resources is common is the norm only for humans occurs mainly in species with low parental investmentarrow_forwardPredators never drive their prey extinct, because then they would go extinct themselves. True Falsearrow_forwardWhy is it important to save great apes? besides, because they are key to spread seedsarrow_forward
- This beetle species has two colors, brown and green. These beetles are normally found in muddy fields where there are patches of green grass as well as patches of brown dirt. Both the green and brown beetles have places in these fields where they are camouflaged from predators. But there is a very dry summer and all of the green grasses turn brown. Now, the fields where the beetles live are all brown. The green beetles are now much easier for the predators to see. Over many months, predict how this population of beetles might evolve through natural selection. Make sure to include all of the principles of natural selection (VCAR). Principles: Variation: slight differences amongst individuals in the population Competition: for an environment's resources Adaptation: the advantage some members of the population have over others in the population Reproduce: organisms that survive will increase in numberarrow_forwardImagine the birds that eat peppered moths went extinct. What would happen to the peppered moth population?arrow_forwardMost remote oceanic islands have at least one unique species of flightless bird that shows little or no fear of humans or other large predators. Account for this observation.arrow_forward
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