Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
3rd Edition
ISBN: 9780134895727
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Publisher: PEARSON
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Textbook Question
Chapter 27, Problem 9TYU
FOCUS ON ORGANIZATION
Early tetrapods had a sprawling gait, like that of a lizard: As the right front foot moved forward, the body twisted to the left and the left rib cage and lung were compressed; the reverse occurred with the next step. Normal breathing, in which both lungs expand equally with each breath, was hindered during walking and prevented during running. In a short essay (100-150 words), explain how the origin of dinosaurs, whose gait allowed them to move without compressing their lungs, could have led to emergent properties in biological communities.
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Chapter 27 Solutions
Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
Ch. 27.1 - Prob. 1CCCh. 27.1 - Prob. 2CCCh. 27.1 - Prob. 3CCCh. 27.2 - What is the Cambrian explosion? Why is it...Ch. 27.2 - Prob. 2CCCh. 27.3 - Prob. 1CCCh. 27.3 - WHAT IF? Would it be accurate to describe the...Ch. 27.4 - Prob. 1CCCh. 27.4 - Describe two key adaptations of aquatic...Ch. 27.4 - MAKE CONNECTIONS The radiation of bilaterians in...
Ch. 27.5 - Describe two adaptations that have enabled insects...Ch. 27.5 - MAKE CONNECTIONS Compare and contrast how the...Ch. 27.6 - Describe three key amniote adaptations for life on...Ch. 27.6 - Prob. 2CCCh. 27.6 - WHAT IF? Which came first, the chicken or the egg?...Ch. 27.7 - Describe how ocean communities changed in the...Ch. 27.7 - Prob. 2CCCh. 27.7 - Prob. 3CCCh. 27 - Prob. 1TYUCh. 27 - Fossil steroid and molecular clock evidence...Ch. 27 - Which of the following was probably the least...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - FOCUS ON EVOLUTION In Figure 27.29, circle the...Ch. 27 - FOCUS ON ORGANIZATION Early tetrapods had a...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Collectively, do these...
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- Recall that amphibians gave rise to the earliest reptiles who then branched off to all the different kinds of reptiles and mammals. List two major adaptations present in REPTILES* that allowed them to live completely on dry land, as compared to amphibians.arrow_forwardgive 2 examples of animals with exoskeleton and endoskeleton where the hydrostatic skeleton is lost explain scientifically do not just google pleasearrow_forwardAristotle classified all large, mobile, unshelled aquatic animals without a vertebral column as: the malacostraca the zoophytes the birds the malacia the ostracodermsarrow_forward
- Explain how the following characters of modern frogs help with jumping locomotion. 1. urostyle and elongated pelvis: 2. Fused tibia+fibula and fused radius+ulna: d. What is the name of the rod-shaped structure present in the vertebral column of the modern anuran that consists of fused vertebral elements?arrow_forwardIn planarians ampulation : can planarians regenerate any body part?arrow_forwardPlacenta Specialised teeth What were some of the challenges for animals that moved on to land? Select one: a. Lateral lines became useless, eggs required water and land was highly populated b. They lacked strong limbs and strong body skeleton, lacked respiration/breathing lungs and desiccation c. Eggs required water, they lacked strong limbs and land was highly populated d. They lacked lungs for respiration, lacked strong limbs and there was less food on land e. They lacked strong limbs and strong body skeleton, lacked respiration/breathing lungs and desiccationarrow_forward
- AN adaptive scenario for how lungs evolved in the tetrapod ancestor?? use the swim bladder to help form this answer.arrow_forward. When during the history of life did vertebrates evolve?arrow_forwardSharks are cartilaginous fish. That is, the bulk of their skeleton is composed of cartilage instead of calcified bone. Their jaw however, is calcified, and is often the only preserved part of their body. Examine the shark jaw in the photo, and deduce the overall symmetry of the organism based on the jaw.arrow_forward
- List four anatomical differences between chimpanzeesand humans, and explain how these changes facilitatedwalking upright.arrow_forwardThe flexibility inherent in a segmented body plan was clearly important to crustacean evolution, but why are crustaceans so much more diverse than annelids, another segmented taxon?arrow_forwardwhy is it that higher forms of animals are bilaterally symmetrical? provide scientific explanations please do not copy from googlearrow_forward
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