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22. Why does external fertilization require water?

22. Why does external fertilization require water?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Hi, please answer questions 17-30 on the page

 

If you cannot do so, please answer 22

 

Thank you :D

CHAPTER 17 ANIMALS Concepts Section 17.1 1. What are the two major groups of animals? Describe each group and give an example. 2. Describe seven major characteristics of animals. 3. What are the three types of symmetry? Describe each type and give an example. 4. Describe the range of types of guts in animals from the most simple to the most complex. 5. List an organ that belongs to each of these organ systems. a. skeletal b. muscular c. digestive. d. circulatory e. respirate f. nervous g. reproductive 6. What organ systems help you to do these activities: run, do your homework, eat lunch, and watch television? 7. What is the advantage of having more than one type of reproduction for simple animals? Section 17.2 & Why is a sponge considered an animal? 9. How is a jellyfish more complex than a sponge? 10. What are the three types of worms? Which is the most simple? Which is the most complex? 11. What do a snail and a clam have in common? 12. Draw and label a mollusk body. 13. Why do you think there are more fossils of mollusks than worms? 14. What are two advantages and one disadvantage of having an exoskeleton? 15. Why is it advantageous for a butterfly larva and an adult butterfly to rely on different sources of food? What would happen if they both ate the same food? 16. If sea stars get stuck on the beach out of the water, they cannot make their way back to the ocean. Explain why not. Section 17.3 17. Which of these is not a characteristic of vertebrates? a backbone and a skull an internal skeleton a. b. e. radial symmetry d. well developed organ systems 18. Match each of these tissue types to the correct description. a. epithelial b. connective C. nerve d. muscle 1. three types including smooth, skeletal, and cardiac 2. transmits signals 3. provides strength, support, and protection 4. protects from dehydration, damage, and invasion from bacteria 19. Do you believe that an endothermic or an ectothermic animal would be more active on a cold night? Why? 20. Why do the largest reptiles live where it is warm year round? 21. Predict if ectothermic animals perspire. Explain your guess. 22. Why does external fertilization require water? 23. What are the five classes of vertebrates? Describe their major characteristics and give an example for each. 24. What are the three classes of fish? Which is most simple? Which is most complex? 25. Do you think gills have a lot of blood vessels? Why or why not? 26. If female fish lay thousands of eggs, why is the water not overcrowded with fish? 27. How are amphibians dependent on water? 28. How are birds' eggs more protected than the eggs of reptiles, amphibians, and fish? 29. Both birds and bats fly. Explain two major differences between these two types of animals. 30. Explain the difference between these pairs of terms. a. endoskeleton, exoskeleton b. gills, lung ectotherm, endotherm. d. internal fertilization, external fertilization e. vertebrate, invertebrate £. radial symmetry, bilateral symmetry c.
Transcribed Image Text:CHAPTER 17 ANIMALS Concepts Section 17.1 1. What are the two major groups of animals? Describe each group and give an example. 2. Describe seven major characteristics of animals. 3. What are the three types of symmetry? Describe each type and give an example. 4. Describe the range of types of guts in animals from the most simple to the most complex. 5. List an organ that belongs to each of these organ systems. a. skeletal b. muscular c. digestive. d. circulatory e. respirate f. nervous g. reproductive 6. What organ systems help you to do these activities: run, do your homework, eat lunch, and watch television? 7. What is the advantage of having more than one type of reproduction for simple animals? Section 17.2 & Why is a sponge considered an animal? 9. How is a jellyfish more complex than a sponge? 10. What are the three types of worms? Which is the most simple? Which is the most complex? 11. What do a snail and a clam have in common? 12. Draw and label a mollusk body. 13. Why do you think there are more fossils of mollusks than worms? 14. What are two advantages and one disadvantage of having an exoskeleton? 15. Why is it advantageous for a butterfly larva and an adult butterfly to rely on different sources of food? What would happen if they both ate the same food? 16. If sea stars get stuck on the beach out of the water, they cannot make their way back to the ocean. Explain why not. Section 17.3 17. Which of these is not a characteristic of vertebrates? a backbone and a skull an internal skeleton a. b. e. radial symmetry d. well developed organ systems 18. Match each of these tissue types to the correct description. a. epithelial b. connective C. nerve d. muscle 1. three types including smooth, skeletal, and cardiac 2. transmits signals 3. provides strength, support, and protection 4. protects from dehydration, damage, and invasion from bacteria 19. Do you believe that an endothermic or an ectothermic animal would be more active on a cold night? Why? 20. Why do the largest reptiles live where it is warm year round? 21. Predict if ectothermic animals perspire. Explain your guess. 22. Why does external fertilization require water? 23. What are the five classes of vertebrates? Describe their major characteristics and give an example for each. 24. What are the three classes of fish? Which is most simple? Which is most complex? 25. Do you think gills have a lot of blood vessels? Why or why not? 26. If female fish lay thousands of eggs, why is the water not overcrowded with fish? 27. How are amphibians dependent on water? 28. How are birds' eggs more protected than the eggs of reptiles, amphibians, and fish? 29. Both birds and bats fly. Explain two major differences between these two types of animals. 30. Explain the difference between these pairs of terms. a. endoskeleton, exoskeleton b. gills, lung ectotherm, endotherm. d. internal fertilization, external fertilization e. vertebrate, invertebrate £. radial symmetry, bilateral symmetry c.
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