Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 18, Problem 5TYU
The evolution of beak size in the various species of Galápagos finches is associated with their (a) songs (b) diets (c) body sizes (d) predators (e) none of the preceding
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The evolution of beak size in the various species of Galápagos finches is associated with their (a) songs (b) diets (c) body sizes (d) predators (e) none of the preceding
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Chapter 18 Solutions
Biology (MindTap Course List)
Ch. 18.1 - Prob. 1LOCh. 18.1 - Prob. 1CCh. 18.1 - Prob. 2CCh. 18.2 - Prob. 2LOCh. 18.2 - Prob. 1CCh. 18.2 - Prob. 2CCh. 18.3 - Explain the four premises of evolution by natural...Ch. 18.3 - Compare the modern synthesis with Darwins original...Ch. 18.3 - Prob. 1CCh. 18.3 - Why are only inherited variations important in the...
Ch. 18.3 - What was missing in Darwins explanation of...Ch. 18.4 - Summarize the evidence for evolution obtained from...Ch. 18.4 - Define biogeography and describe how the...Ch. 18.4 - Describe the evidence for evolution derived from...Ch. 18.4 - Briefly explain how molecular biology and...Ch. 18.4 - Prob. 9LOCh. 18.4 - Prob. 1CCh. 18.4 - How can we explain that fossils of Mesosaurus an...Ch. 18.4 - How do homologous and homoplastic features provide...Ch. 18.4 - How does developmental biology provide evidence of...Ch. 18.4 - How do predator preferences drive the evolution of...Ch. 18 - Evolution is based on which of the following...Ch. 18 - Evolution is the accumulation of genetic changes...Ch. 18 - Charles Darwin proposed that evolution could be...Ch. 18 - Which of the following is not part of Darwins...Ch. 18 - The evolution of beak size in the various species...Ch. 18 - The fossil record (a) usually occurs in...Ch. 18 - In _______________ the selecting agent is the...Ch. 18 - Aardvarks, anteaters, and pangolins are only...Ch. 18 - Prob. 9TYUCh. 18 - CONNECT In what way does the modern synthesis...Ch. 18 - CONNECT What types of gene changes are most...Ch. 18 - EVOLUTION LINK The use of model organisms such as...Ch. 18 - EVOLUTION LINK Charles Darwin once said, It is not...Ch. 18 - EVOLUTION LINK Write short paragraphs explaining...Ch. 18 - EVOLUTION LINK Although most salamanders have four...Ch. 18 - INTERPRET DATA Which of the primates in Figure...Ch. 18 - Prob. 17TYU
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- Based on the Mammal Tree, which of the following species are most closely related to the opossum? (A) ALL three lineages equally. (B) sloth (C) dolphin (D) sloth and armadillo equally (E) armadilloarrow_forwardA naturalist is visiting an island in the middle of Lake Superior and observes a new bird species with three distinct types of beaks. Those with short crushing beaks (BB) feed on oak nuts; those with long delicate beaks (bb) pick the seeds from pine cones; and those with intermediate beaks (Bb) feed on both oak nuts and pine cones. (Note: because their beaks are structurally & functionally inadequate, few Bb offspring successfully reach adulthood). Let’s assume that this difference in beak morphology is the result of incomplete dominance in a single gene. In a year in which most of the food available on the island is in the form of hard oak nuts, which of the mated pairs below will produce the most offspring that will be able to survive to adulthood? Use Punnett squares to back up your answer. List all phenotypes and genotypes. a.) Bb x Bb b.) Bb x bb c.) BB x Bb d.) BB x bbarrow_forwardThe anthropoids are more closely related to ___________ than to ___________. (a) tarsiers; lemurs (b) lemurs; monkeys (c) tree shrews; tarsiers (d) lemurs; tarsiers (e) tree shrews; monkeysarrow_forward
- A naturalist is visiting an island in the middle of Lake Superior and observes a new bird species with three distinct types of beaks. Those with short crushing beaks (BB) feed on oak nuts; those with long delicate beaks (bb) pick the seeds from pine cones, and those with intermediate beaks (Bb) feed on both oak nuts and pine cones. (Note: because their beaks are structurally & functionally inadequate, few Bb offspring successfully reach adulthood). Let’s assume that this difference in beak morphology is the result of incomplete dominance in a single gene. In a year in which most of the food available on the island is in the form of hard oak nuts, which of the mated pairs below will produce the most offspring that will be able to survive to adulthood? Use Punnett squares to back up your answer. List all phenotypes and genotypes. Bb x Bb Bb x bb BB x Bb BB x bbarrow_forwardAlthough many chimpanzees live in environments with oilpalm nuts, members of only a few populations use stones tocrack open the nuts. The likely explanation is that(A) the behavioral difference is caused by genetic differencesbetween populations.(B) members of different populations have different nutritionalrequirements.(C) the cultural tradition of using stones to crack nuts hasarisen in only some populations.(D) members of different populations differ in learning abilityarrow_forwardIs this evolutionary conservation of the pecten structure evidence that natural selection might be maintaining the pecten in its present form in many bird species? Is this theory one that suggests the pecten has a significant adaptive function in birds? Do you believe that experiments might be useful in determining the adaptive function of the pecten if it indeed serves an adaptive function? Outline a simple experiment to see whether the presence of a pecten in the bird's eye is an adaptation.arrow_forward
- All mammals have tailbones and muscles for moving a tail. Even humans have a reduced tailbone and remnant tail-twitching muscles, though these features have no apparent usefulness. These traits in humans would best be described as (a) convergent structures. (b) fossil evidence. (c) evidence from biogeography. (d) vestigial traits.arrow_forwardWith what group do hominoids share the most recent common ancestor? (a) Old World monkeys (b) New World monkeys (c) tarsiers (d) lemurs (e) lorises and galagosarrow_forward(A) Define Eusocial behavior. (B) What is it about the mating system of Eusocial hymenoptera that Hamilton used to explain the evolution of Eusocial behavior in this insect group? (C) Eusocial behavior has evolved in non-hymenoptera. The explanation depends on unique features of the ecology of these organisms. What might these be? (D) Use the Florida scrub jay, sponge shrimp or naked mole rat to explain your answer.arrow_forward
- One of Darwin’s finches, the medium ground finch (Geospiza fortis), is found on the small island of Daphne Major. These finches are seedeating birds. A major drought occurred on the island in 1977. Following the drought, the average beak size of medium ground finches had increased about 3%–4%. Why might a drought lead to an evolutionary change in beak size? Propose a hypothesis and explain how you could go about testing it.arrow_forwardIn a comparison of birds and mammals,the condition of having four limbs is(A) a shared ancestral character.(B) a shared derived character.(C) a character useful for distinguishing birdsfrom mammals.(D) an example of analogy rather than homology.arrow_forwardIn “Our Origins” book by Larsen, what has recent research revealed about chimpanzees? A.) some populations use stone tools and cut animal hides B.) they can control their vocalizations with the same brain centers as humans C.) savanna populations sharpen their sticks and hunt galagosarrow_forward
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