Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 25, Problem 1CT
In 1798, a stuffed platypus specimen was delivered to the British Museum. Reports that it laid eggs created much confusion. To modem biologists, a platypus is clearly a mammal. It has fur and the females produce milk. Young animals have typical mammalian teeth that are replaced by hardened pads of the “bill” as the animal matures. Why do you think modem biologists can more easily accept that a mammal can have some reptilelike traits than scientists who were considering this animal in the late 1700s?
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Humans as individuals have a number of disadvantages compared to other animals. For instance we are not very fast, strong, cannot see well in the dark, have a poor sense of smell and hearing compared to other animals, and we are not very good climbers. With all of these disadvantages how is it that we have been so successful? Shouldn't we have gone extinct as other humanoids such as Homo erectus? Discuss why humans have beaten the odds and are so successful.
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a close evolutionary connection between humans and many other mammals
a very distant evolutionary connection between humans and many other mammals
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a close evolutionary connection between humans and many other reptiles
On a deep sea expedition, you capture a previously undiscovered sea creature that appears to represent a new phyla. It happens to have fertilized eggs that you get to spawn. You watch its development to determine which group of animals it might belong to. You see that the mouth develops first, and it goes through several larval stages in which it molts and regrows its skeleton.
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present yes or no for each
Chapter 25 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 25 - Deathly Lamprey Repellent Predation by sea...Ch. 25 - Deathly Lamprey Repellent Predation by sea...Ch. 25 - Prob. 3DAACh. 25 - Prob. 4DAACh. 25 - Prob. 1SQCh. 25 - Which of the traits listed above are retained by...Ch. 25 - Vertebrate jaw banes evolved from ___ . a. gill...Ch. 25 - Prob. 4SQCh. 25 - Tetra pods evolved from ___ . a. sharks b....Ch. 25 - Turtles, Lizards, and birds belong to one major...
Ch. 25 - Prob. 7SQCh. 25 - Prob. 8SQCh. 25 - Prob. 9SQCh. 25 - Feathers and hair consist mainly of ___ . a....Ch. 25 - Prob. 11SQCh. 25 - ______ have scaleless skin and a heart with three...Ch. 25 - Prob. 13SQCh. 25 - Prob. 14SQCh. 25 - Arrange the groups in order in which they evolved....Ch. 25 - In 1798, a stuffed platypus specimen was delivered...Ch. 25 - Controlling forbody size, would you expect a...Ch. 25 - Why is it more difficult to determine the sex of a...Ch. 25 - Prob. 4CT
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