CONNECT FOR BIOLOGY >IC<
12th Edition
ISBN: 9781259693397
Author: Mader
Publisher: MCG CUSTOM
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Chapter 15, Problem 4TS
Both Darwin and Wallace, while observing life on islands, concluded that natural selection is the mechanism for biological evolution. The Hawaiian and nearby islands once had at least 50 species of honeycreepers, and they lived nowhere else on Earth.
Natural selection occurs everywhere and in all species. What characteristics of islands allow the outcome of natural selection to be so obvious.
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Both Darwin and Wallace, while observing life on islands, concluded that natural selection is the mechanism for biological evolution. The Hawaiian and nearby islands once had at least 30 species of honeycreeper birds and lived nowhere else on earth. Natural section occurs everywhere in all species. What characteristics of islands allow the outcome of natural selection to be so obvious?
Darwin proposed natural selection as a mechanism for evolution. How is it similar to artificial selection? How is it different?For natural selection to work, there must be genetic variation within a population as well as mutations? Why must there be both?
Which of the following is not an example of natural selection?
Development of tanned skin in humans
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Changes in beaks of finches on Daphne Major
Industrial melanism in peppered moths
Chapter 15 Solutions
CONNECT FOR BIOLOGY >IC<
Ch. 15.1 - Define catastrophism and identify who proposed...Ch. 15.1 - Evaluate Lamarck’s idea of “inheritance of...Ch. 15.1 - Construct a timeline of the history of...Ch. 15.2 - List the three categories of observations made by...Ch. 15.2 - Summarize the components of Darwin’s theory of...Ch. 15.2 - Prob. 3CYPCh. 15.3 - Prob. 1CYPCh. 15.3 - Summarize the difference between homologous and...Ch. 15.3 - Explain how biomolecules support the theory of...Ch. 15.3 - Prob. 4CYP
Ch. 15 - Prob. 1NS.1QCCh. 15 - How does the tree of life support Darwin’s theory...Ch. 15 - Which of these pairs is mismatched? a. Charles...Ch. 15 - Prob. 2ACh. 15 - Prob. 3ACh. 15 - Why was it helpful to Darwin to learn that Lyell...Ch. 15 - Prob. 5ACh. 15 - Organisms a. compete with other members of their...Ch. 15 - Prob. 7ACh. 15 - A key biogeographical observation made by Darwin...Ch. 15 - Prob. 9ACh. 15 - Humans are able to cause organisms to evolve...Ch. 15 - Prob. 11ACh. 15 - Prob. 12ACh. 15 - Prob. 13ACh. 15 - All vertebrate embryos have pharyngeal pouches....Ch. 15 - Transitional fossils have been found between some...Ch. 15 - Mutations occur at random and can increase within...Ch. 15 - 2. A cotton farmer applies a new insecticide...Ch. 15 - Prob. 3TSCh. 15 - Both Darwin and Wallace, while observing life on...
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- EVOLUTION LINK Charles Darwin once said, It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change. Explain what he meant.arrow_forwardIf a person scatters a handful of plant seeds from one species in an area, how would natural selection work in this situation?arrow_forwardWhile hiking in the andes mountain in south america, darwin found a glyptodon fossil that resembled the modern armadillo. This evidence was used by Darwin to support his theory of natural selection by showing how species have..arrow_forward
- A population of birds lives on a mountain. In this population, there are red-winged birds, orange-winged birds, and blue-winged birds. A predatory snake eats more of the blue-winged birds because they are not well camouflaged on the red and orange plants that grow on the mountain. This is an example of which mechanism of evolution? Group of answer choices Gene flow Cryptic coloration Natural selection Sexual selection Genetic driftarrow_forwardWhat did Darwin’s travels reveal to him about the number and variety of living species? How did tortoises and birds differ among the islands of the Galapagos? What is evolution? Why is referred to as a theory? Darwin found fossils of many organisms that were different from any living species. How would this finding has affected his understanding of life diversity?arrow_forwardOne of the lines of evidence that led Darwin to the theory of natural selection was his study of artificial selection. Plant breeders and pigeon breeders select offspring with specific traits in mind beforehand. a) However, since humans are an integral part of the natural world, do you think that artificial selection might be more appropriately termed “natural selection”? Why?arrow_forward
- What Darwin never knew . What did Darwin notice during his study of embryos? How did this influence his theory? How did artificial selection influence Darwin’s theory? During the time of Darwin how were the prevailing views of how species were created /behaved different from Darwin’s observations of nature?arrow_forwardWhile the French biologist LaMarck was correct in proposing that evolution does occur, he believed that the long necks of giraffes evolved as generations of giraffes reached for ever higher leaves on the trees. Using these observations, LaMarck proposed the theory that evolution occurs due to the inheritance of characteristics acquired during an organism’s lifetime. From what you know about the scientific method, why is this incorrect?arrow_forwardWhich of the following is NOT a characteristic of natural selection? a) Variation exists among individuals in a population b) Some individuals are better adapted to their environment than others c) Organisms evolve to fit a predetermined goal or plan d) The better-adapted individuals are more likely to survive and reproducearrow_forward
- Which of the following does not characterize natural selection? * Some parts disappeared when not in used No answer Natural resources are limited and competition occurs Survival of the fittest All living things have the potential to produce large number of offspringarrow_forwardDuring drought years on the Galapagos, small, easily eaten seeds become rare leaving only large, hard-cased seeds that only birds with large beaks can eat. If the drought persists for several years, then what should one expect to result from natural selection? Explain your reasoning based on the postulates of the Darvin natural selection theory.arrow_forwardDarwin has been often credited with discovering evolution. Why is this not right? What were Darwin’s observations?arrow_forward
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