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Exam 23: Animal Diversity I: Invertebrates

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Exam 1: An Introduction to Life on Earth91 Questionsadd course
Exam 2: Atoms, Molecules, and Life90 Questionsadd course
Exam 3: Biological Molecules98 Questionsadd course
Exam 4: Cell Structure and Function90 Questionsadd course
Exam 5: Cell Membrane Structure and Function96 Questionsadd course
Exam 6: Energy Flow in the Life of a Cell90 Questionsadd course
Exam 7: Capturing Solar Energy: Photosynthesis101 Questionsadd course
Exam 8: Harvesting Energy: Glycolysis and Cellular Respiration91 Questionsadd course
Exam 9: The Continuity of Life: Cellular Reproduction90 Questionsadd course
Exam 10: Patterns of Inheritance93 Questionsadd course
Exam 11: Dna: the Molecule of Heredity90 Questionsadd course
Exam 12: Gene Expression and Regulation90 Questionsadd course
Exam 13: Biotechnology90 Questionsadd course
Exam 14: Principles of Evolution98 Questionsadd course
Exam 15: How Populations Evolve110 Questionsadd course
Exam 16: The Origin of Species92 Questionsadd course
Exam 17: The History of Life119 Questionsadd course
Exam 18: Systematics: Seeking Order Amidst Diversity91 Questionsadd course
Exam 19: The Diversity of Prokaryotes and Viruses97 Questionsadd course
Exam 20: The Diversity of Protists102 Questionsadd course
Exam 21: The Diversity of Plants103 Questionsadd course
Exam 22: The Diversity of Fungi105 Questionsadd course
Exam 23: Animal Diversity I: Invertebrates101 Questionsadd course
Exam 24: Animal Diversity Ii: Vertebrates118 Questionsadd course
Exam 25: Animal Behavior119 Questionsadd course
Exam 26: Population Growth and Regulation116 Questionsadd course
Exam 27: Community Interactions124 Questionsadd course
Exam 28: How Do Ecosystems Work124 Questionsadd course
Exam 29: Earths Diverse Ecosystems126 Questionsadd course
Exam 30: Conserving Earths Biodiversity110 Questionsadd course
Exam 31: Homeostasis and the Organization of the Animal Body95 Questionsadd course
Exam 32: Circulation89 Questionsadd course
Exam 33: Respiration92 Questionsadd course
Exam 34: Nutrition and Digestion91 Questionsadd course
Exam 35: The Urinary System90 Questionsadd course
Exam 36: Defenses Against Disease89 Questionsadd course
Exam 37: Chemical Control of the Animal Body: the Endocrine System129 Questionsadd course
Exam 38: The Nervous System111 Questionsadd course
Exam 39: The Senses90 Questionsadd course
Exam 40: Action and Support: the Muscles and Skeleton90 Questionsadd course
Exam 41: Animal Reproduction117 Questionsadd course
Exam 42: Animal Development123 Questionsadd course
Exam 43: Plant Anatomy and Nutrient Transport95 Questionsadd course
Exam 44: Plant Reproduction and Development90 Questionsadd course
Exam 45: Plant Responses to the Environment87 Questionsadd course
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One trend in the evolution of animals is the increase in the number of tissue (germ)layers during embryonic development. Flatworms and more complex animals have ________ layers.

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Question 101
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