2. The origin of several new species of new world monkeys (in South America), from ancestral species of old world monkeys (in Africa), by "rafting" across the Atlantic Ocean, illustrates: A. the extinction of old species by continental separation (about 34 million years ago) B. the origin of new species by continental separation (about 34 million C. the extinction of old species by continental joining (about 34 million years ago) D. the origin of new species by continental joining (about 34 million years ago) E. all of the above years ago)

2. The origin of several new species of new world monkeys (in South America), from ancestral species of old world monkeys (in Africa), by "rafting" across the Atlantic Ocean, illustrates: A. the extinction of old species by continental separation (about 34 million years ago) B. the origin of new species by continental separation (about 34 million C. the extinction of old species by continental joining (about 34 million years ago) D. the origin of new species by continental joining (about 34 million years ago) E. all of the above years ago)

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter22: Speciation

Section: Chapter Questions

Problem 5TYK: In the model of allopatric speciation, the geographical separation of two populations: a. is...

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1) In allopatric speciation, geographic separation of two populations a.reduces the relative fitness of hybrid offspring. b.is sufficient for speciation to occur. c.allows gene flow between them. d.inhibits gene flow between them.
4. Which of the following is an example of convergent evolution? Group of answer choices a. A population of finches becomes separated in the Galapagos Islands and begins to develop into two different species of finch b. Two different species of plants in separate deserts evolve a similar waxy outer cuticle to preserve water c. One species of lizard evolves a green coloration to blend in with its tropical forest surroundings, whereas another species evolves a tan coloration to blend in with its desert surroundings d. Because they share a recent common ancestor, Lions and Bengal Tigers both have retractable claws for catching prey e. Melanic moths begin to lose pigment in their wings as the environment becomes less polluted 6. Which of the following scenarios is an example of stabilizing selection? Group of answer choices a. A population of sharks is evolving towards the average body size; small sharks fall prey to killer whales, large sharks can't get…
6: The tails of dolphins and whales are considered analogous to fish tails because ... Group of answer choices A: Both answers are true B: they are the result of convergent evolution to a similar environment. C: No answers are true D: they are not the result of a close ancestral relationship.
An animal breeder, attempting to cross a llama with an alpaca for finer wool, found that the hybrid offspring rarely lived more than a few weeks. This outcome probably resulted from: a. genetic drift. b. prezygotic reproductive isolation. c. postzygotic reproductive isolation. d. sympatric speciation. e. polyploidy.
The wings of birds, the legs of pigs, and the flippers of dolphins provide examples of: a. vestigial structures. b. homologous structures. c. acquired characteristics. d. artificial selection. e. uniformitarianism.
In the model of allopatric speciation, the geographical separation of two populations: a. is sufficient for speciation to occur. b. occurs only after speciation is complete. c. allows gene flow between them, d. reduces the relative fitness of hybrid offspring. e. inhibits gene flow between them.
When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that: a. similarities and differences in phenotypic characters reflectunderlying genetic similarities and differences. b. the animals use exactly the same traits to identify appropriatemates. c. differences in these traits caused speciation in the past. d. the adaptive value of these traits can be explained. e. variations in these traits are produced by environmentaleffects during development.
6) One could apply the phylogenetic species concept by a.comparing the morphology of two organisms. b.tracing the common ancestry of two organisms. c.determining the overall similarity in the ecological niche of two organisms. d.mating two organisms to see if viable offspring result.
3) A species of crayfish that lives in caves produces eyestalks like its above-ground relatives, but no eyes (unlike its above-ground relatives). Eyestalks in these cave-dwelling crayfish are an example of a. biogeographical evidence of evolution b. the law of succession c. convergent evolution d. a vestigial trait
2) A species is a group of individual organisms that interbreed and produce fertile, viable offspring. According to this definition, one species is distinguished from another when, in nature, it is not possible for matings between individuals from each species to produce fertile offspring. Evolution is an important mechanism in the formation of new species. The evolution of a new species requires several components including all, BUT A) Evolution of a new species requires a long time. B) Evolution of a new species requires the need for a genetic change. C) Evolution of a new species requires a separation that prevents interbreeding. D) Evolution of a new species requires mutations that produce new genetic traits. Not Graded
2) A species is a group of individual organisms that interbreed and produce fertile, viable offspring. According to this definition, one species is distinguished from another when, in nature, it is not possible for matings between individuals from each species to produce fertile offspring. Evolution is an important mechanism in the formation of new species. The evolution of a new species requires several components including all, BUT A) Evolution of a new species requires a long time. B) Evolution of a new species requires the need for a genetic change. C) Evolution of a new species requires a separation that prevents interbreeding. D) Evolution of a new species requires mutations that produce new genetic traits.
6. Which of the following is not used as evidence of evolution? a. Biogeography b. DNA Sequences c. Folktales d. FOSSIL RECORDS 8. Which of the following is are analogous structures? a. The leg of a dog and flipper of a dolphin b. The limbs of humans and apes c. The wings of bats and butterfly d. The tales of mice and rats 9. Which of the following is true about vestigial structure or trait? a. These structures are highly developed especially for modern species b. It has an important function in both more highly evolved and more ancestral organisms c. It last not have a necessary function in more highly evolved organisms but it did in more ancestral organism d. It did not have a necessary function and more ancestral organism but it does in more highly evolved organisms 10. What do the structural similarities between the flippers of wheels in the arms of human suggest a. Humans and wheels have common ancestor b. The human species began life in the ocean c. Wheels are older than…