PEARSON ETEXT FOR CAMPBELL BIOLOGY
12th Edition
ISBN: 9780135988046
Author: Urry
Publisher: PEARSON
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Chapter 32.3, Problem 2CC
Summary Introduction
To know: The way how animals exchange materials without an internal transport system.
Introduction: In animals, the transportation of gases, nutrients, etc. is done by the circulatory system and excretory system. The circulatory system is used to carry blood through the body. Some animals use diffusion to exchange water and other nutrients in the body.
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Chapter 32 Solutions
PEARSON ETEXT FOR CAMPBELL BIOLOGY
Ch. 32.1 - Summarize the main stages of animal development....Ch. 32.1 - WHAT IF? What animal characteristics would be...Ch. 32.2 - Put the following milestones in animal evolution...Ch. 32.2 - VISUAL SKILLS Explain what is represented by the...Ch. 32.2 - MAKE CONNECTIONS Evaluate whether the origin of...Ch. 32.3 - Compare three aspects of the early development of...Ch. 32.3 - Prob. 2CCCh. 32.3 - Prob. 3CCCh. 32.4 - Prob. 1CCCh. 32.4 - WHAT IF? Suppose ctenophores are basal metazoans...
Ch. 32.4 - Prob. 3CCCh. 32 - Prob. 32.1CRCh. 32 - What caused ihe Cambrian exploston? Describe...Ch. 32 - Describe how body plans provide useful Information...Ch. 32 - Prob. 32.4CRCh. 32 - Prob. 1TYUCh. 32 - The distinction between sponges and other animal...Ch. 32 - Prob. 3TYUCh. 32 - Prob. 4TYUCh. 32 - EVOLUTION CONNECTION A professor begins a lecture...Ch. 32 - WRITE ABOUT A THEME: INTERACTIONS Animal life...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE This organism is an...
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- The cell is the basic unit of all living things. Some organisms like Amoeba and bacteria are only one cell. Viruses are sub-cellular. Plants and animals are multicellular. Analyze how this fact is important when considering how different organism feed, respire, and excrete. Give two examples for each characteristic and use a multi- cellular organism and a uni-cellular (one-celled) organism to compare.arrow_forwardBriefly explain mantlearrow_forwardQuantitative: Fick's first law helps us understand the relationship between a molecule's concentration gradient (the difference in its concentration at two locations) and diffusive flux. In organisms without circulatory systems, the delivery of oxygen to their body tissues can be limited by diffusion. Therefore, diffusion can literally determine the allowable thickness of their body. One example of an organism like this is a flatworm. There are over 30,000 species of marine flatworms which are often beautifully colored. Let's think more about what might be happening in a flatworm's body. a) Draw a picture of a slice through a flatworm showing its cross section and the water above and below. We'll let the total worm thickness be 2Ax which will simplify things as we go. b) Write Fick's equation for the flux of oxygen from the water above into the center of the worm. Label your drawing above with the key variables in this equation. c) A typical marine flatworm is about 1 mm thick. If the…arrow_forward
- describe how does the locomotion represents an adaptation to each animal's lifestyle, using planaria and tapeworms as specific examples?arrow_forwardBody fluids of eumetazoan animals are separated into fluid "compartments." Name these compartments and explain how compartmentalization may differ in animals with open and closed circulatory systems.arrow_forwardExplain the challenges that insects have to overcome to maintain ion and water balance. Describe the structures used by insects that help them do this.arrow_forward
- Explain the differences between the four types of dormancy in animals.arrow_forwardDescribe the types of cells in a sponge body, and explain howthey work together to keep the animal alivearrow_forwardDefine homeostasis. What evolutionary advantages for a species might result from successful maintenance of internal homeostasis?arrow_forward
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