Chapter 8 Vocabulary

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Across
  1. 1. looks like an adult insect without wings
  2. 4. an organ that transfers nutrients to an embryo
  3. 6. neurons nerve cells that respond to information through muscles and other organs
  4. 7. a tissue that is more flexible than bone
  5. 8. system receives information from and environment then coordinates a response
  6. 9. a place where two or more parts of a skeleton meet
  7. 13. system an organ system that is built to obtain and digest food
  8. 15. period length of time between fertilization and birth
  9. 18. system structures that animals use to exchange gases with it's surroundings
  10. 21. looks like an upright vase
  11. 24. metamorphosis egg,larva pupa, and adult
  12. 25. bladder an internal gas filled sac
  13. 27. animals that eat both animals and plant matter
  14. 28. nerve cells that pass information between neurons
  15. 29. fertilization occurs outside of the female's body
  16. 30. an organized grouping of neurons in the head of an animal with bilateral symmetry
  17. 31. egg the eggs of land vertebrates
  18. 33. system transports needed materials to cells and takes away waste
  19. 36. vascular system a system of fluid filled tubes
  20. 37. particles moving from an area of high concentration to an area of low concentration
  21. 38. tissues that contract and release to create movement
Down
  1. 2. major body changes
  2. 3. respiration cells using oxygen and digested food molecules to release energy in food
  3. 5. looks like an open umbrella
  4. 10. a signal that causes an animal to react in some way
  5. 11. neurons nerve cells that detect stimuli
  6. 12. an animals reaction to a stimulus
  7. 14. an animal that eats only other animals
  8. 16. an animal that eats only plant matter
  9. 17. the process that breaks down foods into smaller molecules
  10. 19. metamorphosis no distinct larval stage
  11. 20. a nerve cell with a unique structure for processing information
  12. 22. third stage in complete metamorphosis
  13. 23. feeders animals that live in and strain their food from water
  14. 26. shedding exoskeletons and producing a new one
  15. 32. larva of a frog
  16. 34. fertilization occurs inside the female's
  17. 35. information traveling as an electrical message in a nerve cell