Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 39, Problem 6TYU
Summary Introduction
Introduction:
Behavior can be defined as action carried out by the muscles under the influence of the nervous system.
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Chapter 39 Solutions
Campbell Biology in Focus
Ch. 39.1 - Contrast the role of Ca2+ in the contraction of a...Ch. 39.1 - WHAT IF? Why are the muscles of an animal that has...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - Prob. 2CCCh. 39.2 - Prob. 3CCCh. 39.3 - Prob. 1CCCh. 39.3 - MAKE CONNECTIONS How is the lunar-linked rhythm of...Ch. 39.4 - How might associative learning explain why...Ch. 39.4 - Prob. 2CC
Ch. 39.4 - MAKE CONNECTIONS How might a learned behavior...Ch. 39.5 - Prob. 1CCCh. 39.5 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 39.6 - Prob. 1CCCh. 39.6 - Prob. 2CCCh. 39 - During the contraction of a vertebrate skeletal...Ch. 39 - Prob. 2TYUCh. 39 - According to Hamiltons rule, A. natural selection...Ch. 39 - The binding of calcium to the troponin complex A....Ch. 39 - Curare, a substance that blocks the acetylcholine...Ch. 39 - Prob. 6TYUCh. 39 - Prob. 7TYUCh. 39 - SCIENTIFIC INQUIRY Propose a hypothesis to explain...Ch. 39 - Prob. 9TYUCh. 39 - Prob. 10TYUCh. 39 - FOCUS ON INFORMATION Learning is defined as a...Ch. 39 - Prob. 12TYU
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- Three morphological trends seen in the origin and evolution of modern humans include____. a. increases in relative brain size and body size, and a decrease in skeletal robusticity b. decreases in relative brain size and body size, and a decrease in skeletal robusticity c. decreases in body size and skeletal robusticity, and an increase in relative brain size d. a decrease in brain size, an increase in body size, and a decrease in skeletal robusticity e. increases in relative brain size and body size, and an increase in skeletal robusticityarrow_forwardIn the fox taming experiment, two groups of foxes are selected for breeding. What trait(s) did the scientists use for selecting which animals they would breed? There is ONE correct answer. A. Brain Size and Eyesight B. Fur Color and Hearing C. Human Tolerance and Intolerance D. Heat and Cold Tolerancearrow_forwardA. The earliest evolutionary change in the hominins was a. increased brain size. b. habitual bipedalism. c. changes in dentition. d. all of the above (they happened at the same time). B. Which of the following statements about endurance running is correct? a. Endurance running is found among all primates, but humans are most adapted for it. b. The ability to control body temperature is likely the most important running adaptation. c. Humans can outrun almost all other mammals, including horses, at short distances. d. Endurance running probably emerged with the appearance of Homo sapiens. Clear my choicearrow_forward
- Compared to the other living apes, modern humans have_____ . a. a smaller brain b. shorter, finer body hairs c. greater sexual dimorphism in body size d. shorter, weaker thumbsarrow_forwardIn a comparison of Homo erectus, archaic Homo sapiens, and modern Homo sapiens, the general trend in robusticity over time in Homo can be characterized as ____. a.) increasing over time slightly until 100,000 years ago, then significant increase b.) no real change in robusticity is detected over time c.) decreasing significantly over time d.) decreasing slightly over time until 100,000 years ago followed by a dramatic decreasearrow_forwardThe “cooking hypothesis” suggests that Homo erectus A. Significantly increased the available food and nutrition and decreased tooth size after learning to control fire. B. Took much longer to evolve than other hominins because cooking made life much easier and more survivable for them. C. Started to use fire to keep animals away from their camps, thus allowing them to survive the long African nights. D. Began to cannibalize (and cook) other hominins, thus decreasing competition and increasing food availability at the same time.arrow_forward
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