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 8TYU
Aardvarks, anteaters, and pangolins are only distantly related but are similar in structure and form as a result of (a) homology (b) convergent evolution (c) biogeography (d) vestigial structures (e) artificial selection
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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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- What 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_forwardSpecies have traditionally been characterized as "primitive " and "advanced". For example,mosses were considered to be primitive, and flowering plants advances;crocodiles were primitive and mammals were advanced.Why do most biologist today think it is incorrect to refer to any modern species as primitive?arrow_forwardThe forelimbs of the organisms in Figure 1 are examples of what type of structures? What do these structures indicate about the evolution of the three organisms? What would be an example of a structure analogous to the last structure? How does the anatomy of the forelimbs show an evolutionary pattern?arrow_forward
- How is it that most, if not all, of the extant animal phyla today evolved during the Cambrian period if so many massive extinction events have taken place since then?arrow_forwardSpecies have traditionally been characterized as “primitive” and “advanced.” For example, mosses were considered to be primitive, and flowering plants advanced; crocodiles were primitive and mammals were advanced. Why do most biologists of today think it is incorrect to refer to any modern species as primitive?arrow_forwardThe fossil record shows that the first mammals evolved 220 million years ago. The supercontinent Pangaea began to break apart 200 million years ago. On which continents would you predict that fossils of the first mammals will be found?arrow_forward
- Which of the following best reflects a phylogenetic relationship between chimpanzees and baboons? A. They are grouped together because they live in similar habitats. B. They are grouped together because they have a common ancestor in recent history. C. They are grouped together because they both have an opposable thumb. D. They are grouped together because they both feed their young breast milk.arrow_forwardDraw the phylogenetic tree, label all of the living things and the traits that characterize them directly on the tree. Living thing Vertebrae Bony Skeleton 4 Limbs Amniotic Egg Hair 2 post-orbital fenestrae Amphibians + + + - - - Crocodiles + + + + - + Dinosaurs + + + + - + Primates + + + + + - Rays + + - - - - Rodents + + + + + - Sharks + - - - - -arrow_forwardWhat is Natural Selection? (Use the follow-up questions below to construct your answer) How did different environments 'select' for certain beaks? What will happen to the birds that are no longer well suited to eat the type of food the island provides?arrow_forward
- The name for the monophyletic group of animals that includes all reptiles, mammals, birds, and amphibians is the ----- . This group is characterised by the evolution and shared presence of ----- . However, some members of this group do not possess this feature because of a process called ----- loss. Snakes are famously legless reptiles, but other reptiles have also lost their limbs to varying degrees. Within the family ---- , we see species that have no limbs and some that have only hind limbs. In the genus ---- we can find species that have fully pentadactyl limbs, as well as those with only 3, 2, or 1 --- per foot.arrow_forwardWhy do you think baleen whales are generally larger than toothed whales? Why are they capable of growing larger than even the largest dinosaurs?arrow_forwardTarsiers are primates with unusual anatomical characteristics whose taxonomic classification has been heavily debated. How might the Tarsier example affect our interpretation of the fossil record of the early euprimates?arrow_forward
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