70 biologists can infer how species are related evolu

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(70) Biologists can infer how species are related evolu- tionarily by comparing DNA sequences for the same genes in different species. Species (75) with similar DNA sequences for these genes are generally more closely related to each other than to species with less- similar DNA sequences. DNA (80) evidence concerning the anoles led researchers to conclude that habitat specialists on one island are not closely related to the same habitat specialists (85) elsewhere, indicating that spe- cialists evolved independently on each island. -------------------------------------------------------------------------------- Q24: The primary purpose of the passage is to A. describe some unusual features of anole lizard species B. account for a particular type of behavior found among anole lizard species C. contrast two types of evidence that have been used to support a particular hypothesis concerning anole lizard species D. explain how researchers resolved a particular scientific question concerning anole lizard species E. examine different explanations for a particular trait common to certain anole lizard species Answer: -------------------------------------------------------------------------------- Q25: Which of the following best describes the purpose of the sentence in lines 13-23 (“What is … Jamaica”)? 27
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-------------------------------------------------------------------------------- Q26: It can be inferred form the passage that which of the following is true of the Cuban tree- dwelling anole lizard and the Jamaican tree-dwelling anole lizard? -------------------------------------------------------------------------------- Q27: The passage suggests that if a grass-dwelling anole lizard species evolved on one island and then traveled over water to colonize a second island, the grass-dwelling anoles on the two islands would eventually A. develop very different DNA sequences B. develop into different species that are more distantly related to each other than to tree- and twig-dwelling anoles on their own islands C. come to differ significantly from one another in habitat use D. develop into different, but closely related, species E. evolve significant morphological differences Answer: ----------------------------------------------------------------------------------------------------------- - Q28: In the sixteenth century, the push for greater precision in measuring time was not, like more recently, motivated by complicated philosophical questions about the nature of matter and the universe, but the practical matters of navigation :
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