Campbell Biology: Concepts & Connections (9th Edition)
9th Edition
ISBN: 9780134296012
Author: Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 11TYK
Birds and mammals are both endothermic, and both have four-chambered hearts. Most reptiles are ectothermic and have three-chambered hearts. Why don’t biologists group birds with mammals? Why do most biologists now consider birds to be reptiles?
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Birds and mammals are both endothermic, and both have four chambered hearts. Most reptiles are ectothermic and have three-chambered hearts.
a) Why won’t biologists group birds with mammals?
b) Why do most biologists now consider birds to be reptiles?
Birds and mammals are both endothermic, and both have four-chambered hearts. Most reptiles are ectothermic and have three-chambered hearts. Why won’t biologists group birds with mammals?
Which of the following is a correct way to distinguish reptiles from amphibians?
Group of answer choices
Reptiles have scales & amphibians don’t.
Reptiles sometimes don’t have legs, but amphibians always have them.
Amphibians lay eggs and reptiles don’t.
Reptiles lay eggs and amphibians don’t.
Reptiles go through metamorphosis and amphibians don’t.
Chapter 19 Solutions
Campbell Biology: Concepts & Connections (9th Edition)
Ch. 19 - Connecting the Concepts 1. In the primate...Ch. 19 - Connecting the Concepts 2. In the chordate...Ch. 19 - A lamprey, a shark, a lizard, and a rabbit share...Ch. 19 - Why were the Tiktaalik fossils an exciting...Ch. 19 - Fossils suggest that the first major trait...Ch. 19 - Which of the following correctly lists possible...Ch. 19 - Which of these is not a member of the anthropoids?...Ch. 19 - Studies of DNA support which of the following? a....Ch. 19 - The earliest members of the genus Homo a. had a...Ch. 19 - Compare the adaptations of amphibians and reptiles...
Ch. 19 - Birds and mammals are both endothermic, and both...Ch. 19 - One of the misconceptions about human evolution is...Ch. 19 - What adaptations inherited from our primate...Ch. 19 - Summarize the hypotheses that explain variation in...Ch. 19 - A good scientific hypothesis is based on existing...Ch. 19 - Explain some of the reasons why the human species...Ch. 19 - Anthropologists are interested in locating areas...Ch. 19 - SCIENTIFIC THINKING By measuring the fossil...
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