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Concept explainers
To explain: The evidence of rapid environmental changes.
Concept introduction: Human evolution gives a new hallmark in the course of evolution. Until human evolution occurred, the course of evolution was limited to organic evolution. Human evolution is unique for the reason that they include organic evolution, cultural evolution, social evolution, and psychological evolution.
To explain: The aspects of human culture that is responsible for these changes.
Concept introduction: Human evolution gives a new hallmark in the course of evolution. Until human evolution occurred, the course of evolution was limited to organic evolution. Human evolution is unique for the reason that they include organic evolution, cultural evolution, social evolution, and psychological evolution.
To explain: The evidence of a decrease in the rate of human-caused environmental changes.
Concept introduction: Human evolution gives a new hallmark in the course of evolution. Until human evolution occurred, the course of evolution was limited to organic evolution. Human evolution is unique for the reason that they include organic evolution, cultural evolution, social evolution, and psychological evolution.
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Chapter 17 Solutions
Campbell Essential Biology with Physiology (5th Edition)
- In a courtroom in 2005, biologist Ken Miller criticized the claims of intelligent design. After noting that 99.9% of the organisms that have ever lived on earth are now extinct, he said that “an intelligent designer who designed things, 99.9% of which didn’t last, certainly wouldn’t be very intelligent.” Evaluate Miller’s criticism.arrow_forwardAdaptation is an important component for species survival. Genes get selected for based on pressures. It is now known that several species (bacteria, plants, and animals) adaptions potentially reflect a response to human actions. Which of the following represent examples of how species are adapting to human behaviors? Choose all that apply. O Dandelions getting longer in areas that are constantly mowed O Bacteria exhibiting antibiotic resistance O The peppered moth expressing dark coloration genes during the industrial revolution O Cholera bacteria becoming more mild when water sources are cleanerarrow_forwardHow are abiotic factors important in the process of natural selection? The abiotic factors of an environment include nonliving things that affect where the organism lives. The conditions or environment where an organism lives is the base for an organism making adaptations. If they are well adapted, they will survive; if not, they will not survive. The abiotic factors are the plants that live in the ecosystem. If the organism can feed off the plants, it will survive. If it cannot find a food source, it will not survive. The abiotic factors are the species within the ecosystem that compete for resources. The organisms that are able to obtain these factors will survive; those that are not will not survive. The abiotic factors are the number of predators present in the ecosystem where the organism lives. If the organism can fend off the predator, it will survive.arrow_forward
- All land vertebrates, including humans and dinosaurs are descended from early tetrapods like Tiktaalik. Since the Devonian, land vertebrates have adapted to a wide variety of environments. What environmental changes might cause certain mutations to propagate through a population? A cooling period which favors insulating characteristics like feathers A mass die-off of plants which favors smaller forms with more efficient metabolism A warming period which favors efficient cooling strategies All of these are correctarrow_forwardLife on earth has lasted an estimated 3.5 billion years, experiencing different environmental change like extreme heat and ice age. But living organisms on Earth have their seasons, and all living things will be wiped out eventually. Having learned about the different type of evidence used to proved evolution, hypothesize how human beings will adapt in the next five years. Direction: List down five adaptation that our species may develop in order to continue surviving on Earth. Explain each adapation.arrow_forwardPesticides can be used to control a variety of pests, such as insects, weeds, rodents, bacteria, fungi, etc. Over time many pesticides have gradually lost their effectiveness because pests have developed resistance – a significant decrease in sensitivity to a pesticide, which reduces the field performance of these pesticides. 1. Why do pesticides lose their effectiveness over time? Use the theory of natural selection and evolution to explain.arrow_forward
- The mechanisms of evolution that we have learned contributed to the diversity of organisms we have today. We can see these organisms everywhere, even not physically but we learned about them on TV, books, social media, and others. We come to appreciate them and be amazed by their structures, mechanisms of eating, survival and many more. We also learned that we, humans, can be a contributory factor on lessening their diversity potentials and even their survival through hunting, destroying and relocating their habitats. As a member of the community you are living in now and with the remaining diversity of organisms present in your place, identify organisms you think are nearing extinction/endangered or have low diversity. Afterwards, write the reasons for this if you know, or possible reasons if not. Lastly, present a plan on how the community can work together in preserving and encouraging more variation in these organisms in the near future. You can ask help from the elders for their…arrow_forwardWhat do you think will happen to human population in the future. Will we evolve? Why or why not.arrow_forwardThe broad thin ears of this African elephant help dissipate heat during hot days of its habitat - a trait that makes the survival of the organism possible in that habitat. This is an example of response to stimulus growth and development hierarchial order of organism evolutionary adaptation inter-species interactionarrow_forward
- As a graduate student, you have been studying the genetics of heat tolerance in a population of field mice at an apple orchard in southern Minnesota. You are interested in a specific gene associated with a heat stress protein, promoting heat tolerance in the mice. During your second summer field season, you have found that this gene has increased in frequency in the mice population, as compared the previous summer season. Has evolution occurred in this population of field mice? Why or why not? What might explain this change in gene frequency? Make a list. Think of all the possible explanations, especially ones other than natural selection. What additional data would help you determine which of your explanations (hypotheses) above apply to this population of mice?arrow_forwardis humans are "special" and will be able to withstand the dreary outlook of our species predicted by many?arrow_forwardOne way to prevent a small population of a plant or animal species from going extinct is to deliberately introduce some individuals from a large population of the same species into the smaller population. In terms of the evolutionary mechanisms discussed in this chapter, what are the potential benefits and drawbacks of transferring individuals from one population to another? Do you think biologists and concerned citizens should take such actions?arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
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