Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 24, Problem 16PIAT
Neanderthals disappeared about 40,000 years ago when the modem human population increased. This is an example of what outcome(s) of secondary contact (see Table 24.3)? Predict one way this result might have come about.
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Chapter 24 Solutions
Biological Science (6th Edition)
Ch. 24 - 1. What distinguishes a morphospecies?
a. It has...Ch. 24 - 2. Which of the following describes vicariance?
a....Ch. 24 - The biological species concept can be applied only...Ch. 24 - True or False? Gene flow increases the divergence...Ch. 24 - 5. When the ranges of two different species meet,...Ch. 24 - 6. Sexual selection favors individuals with traits...Ch. 24 - 7. QUANTITATIVE If one species (2n = 10) crosses...Ch. 24 - 8. CAUTION True or false? Speciation is a slow...Ch. 24 - Prob. 9TYPSSCh. 24 - Prob. 10TYPSS
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- Modern humans crossed a landbridge from Asia into North America during a glacial period about 20,000 years ago and were the first hominins to occupy the region. Group of answer choices True Falsearrow_forwardOver a period of millions of years, cheetahs evolved to become faster and faster (as did their prey). Give a Lamarckian explanation of how cheetahs evolved to became faster. Then explain why this explanation is not scientifically possible.arrow_forwardIdentify whether each of the statements is an Observation or a Hypothesis to explain an observation. 1) Golden toads laid their eggs in shallow pools of water between the roots of cloud forest trees. 2) Golden toad tadpoles lived in shallow pools of water on the cloud forest floor before developing into toadlets. 3) Over warm ocean water, clouds form higher in the atmosphere. 4) Golden toads had highly specialized reproductive habitat. 5) Golden toads were found only in the cloud forest of Monteverde, Costa Rica. 6) The fossil record and current trends show that highly specialized species with small populations and narrow ranges are highly susceptible to extinction. 7) Spring 1987 was the driest spring on record for Monteverde. 8) All the golden toad tadpoles might have died during the spring of 1987 because their pools dried up before the young could lead a fully terrestrial life. 9) The drier conditions at Monteverde in 1987 might have been caused by…arrow_forward
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- The diet of Homo Habilis included animal proteins, which it got from herding bisons for their meat hunting smaller prey using bows and arrows dairy products such as chicken eggs and goat milk scavenging dead prey of other predatorsarrow_forwardUse the following passage to answer the next two questions. Ducks are aquatic birds. Their feet are webbed and this trait makes them fast swimmers. Biologists believe that ducks evolved from land birds that did not have webbed feet. The amount of webbing on a duck's feet is a heritable trait. Q6.8. While webbed feet were evolving in ancestral ducks, with each generation: O Most ducks had about the same amount of webbing on their feet as their parents. Most ducks had more webbing on their feet than their parents. Most ducks had less webbing on their feet than their parents. The amount of webbing on ducks' feet had no relationship with the amount their parents had.arrow_forwardAccording to "Homo naledi – New Questions on Human Evolution ", what are NOT possible explanations for how these individuals got into the cave? A.A massacre B.Flooding C.They fell in the cave D.All of these are NOT possible explanations for how these individuals got into the cavearrow_forward
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