Science Test Study Guide Invertebrates Section 1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. Animals are made out of many _______________. Animal cells have a ___________and _______________. Animals depend on __________________ for food. Many animals move from _________to ___________. Animals __________their food. All animals are capable of reproducing __________________. _________________eat plants. Carnivores eat _______________. _______________eat both (#8 and #7). ______________eat decaying matter. Some species have ________________features that enable them to avoid predators.\ Size is a type of __________________. Mimicry is an adaptation in which one animal ___________another animal. _______________is an adaptation for many predators to sneak up on their prey. Some animals ________________to confuse their predator. __________________helps animals out run their predators. Traveling in _____________makes the predator have too large a prey to capture. Animals are classified by ______________or no _______________. Animals with backbones are called _______________. Animals without backbones are called _____________________. _______________is when an animal has body parts arranged in a circle around a center point. ________________is when you can divide the animal into two. Sponges and Cnidarians 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. Sponges live in _____________environments. Sponges are used for __________________ or _________________. Fossil evidence shows that sponges appeard on earth about 600 ______years ago. _____________-organsims remain attached to one place during their lifetime. A sponge’s body is a __________ tube that is _______at the bottom and ____________at the top. The ___________ cell moves the water into and out of the sponge. ______________is a fibrous material. To get food, sponges __________microscopic material. ____________produce sperm and egg. Asexual reproduction occurs by __________or regeneration. Most Cnidarians live in ___________ but they can also live in ________________(example hydra) Cnidarians have two different body forms: 35. 36. 37. 38. 39. 40. 41. 42. 43. Polyp-____________and shaped like a ___________ The medusa is _____________________and shaped like a ______ Also, the medusa’s tentacle-like things are facing _______________,and the _________________’s tentacle like things are facing downward Cnidarians have ________body opening(s) and ___________-symmetery They have a ________________where food is broken down. They have a system of_________________ and a ________net. The nerve net carries __________and connects all parts of the ________________. Armlike structures called ________________surround the mouths of most cnidarians. Some animals live unharmed in these . A stinging cell has a capsule with coiled threadlike structures that help the cnidarians _____________________________. Cnidarians are ______________-. Some can ___________their prey. BONUS! T/F Cnidarians only have a mouth, no anus. Reproduction: _____________The polyp forms reproduce asexually by producing buds that are in the tentacles and then a new polyp comes and fertilizes the egg (Mrs. G said that this was not on the test, so we didn’t need to worry about it –so I didn’t do fill in the blank ) 44. 45. 46. 47. 48. 49. This is a _________________. Planarians are ________living. It has a _____________tract. A planarian feeds on__________________of larger organisms. Their body is covered in ______________. As the cilia move, the worm is moved along in a ______________tract that is secreted from the underside of the planarian. 50. Planarians reproduce ________________by dividing in two. They can also _______________. 51. 52. 53. 54. 55. 56. 57. 58. 59. This is a ________________(and yes I know it says it in the picture!) All flukes are __________with complex lifestyles. They reproduce __________________. A female lays fertilized eggs in the__________________. The eggs can leave the host in its _________or _______________. Then, they can burrow into the body of a ______________. Then, they can burrow into another body, Ex. A ___________-when they are swimming. ____________________________is a disease caused by flukes. It is a deadly diease in a hman’s ________________. 60. This is a _________________-. 61. Tapeworms are __________________. 62. The adults use its __________and ___________to attach itself to the intestine of a ___________. 63. A tapeworm grows by _______________________immediately behind its head. 64. After a segment is filled with ___________________it detaches and leaves the host. If a host eats the sements, the fertilized egg ______________and develops into a immature tapeworm. 65. Scientists believe that flatworms were the fist to evolve _________________- with _________________ and ______________. 66. Roundworms: 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. This is a ________________-. Roundworms also are called ______________. Roundowrms are _____________and tapered at both ends. The body is a _____________within a tube, with fluid inbetween. They have two body openings, a ____________and an ____________. Trichinsosis-form painful ____________and are found in _______________ meat. Roundworms appeared _____________________in evolution. They wre the first roup of animals to have a _______________with a mouth and an ANUS. Some scientist hypothesis that roundworms are closely related to __________. Worms are beneficial because they feed on _________. They are essential to ____________-of soil.