Animal Diversity Chapter 1

Edit Answers
1234567891011121314151617181920
Across
  1. 3. an animal that only eats plants
  2. 6. symmetry is when the body parts are arranged in a circle around a central point
  3. 7. how the body parts of an animal are arranged
  4. 8. any variation that makes an organism better suited to its environment
  5. 9. a cnidarian body shape that is bell shaped and free swimming
  6. 12. an animal that eats both plants and animals
  7. 13. arm like structures that have stinging cells and surround the mouth of most cnidarians
  8. 17. an animal that eats only other animals
  9. 18. organisms that secrete hard external skeletons on those of earlier generations; the form large structures that help protect shorelines from wave erosion
  10. 20. animals without a backbone
Down
  1. 1. animals with a backbone
  2. 2. an adaptation in which one animal closely resembles another animal in appearance or behavior
  3. 4. a cnidarian body shape that is vase shaped and is usually sessile
  4. 5. any marking or coloring that helps an animal hide from other animals
  5. 7. an animal that eats only other animals
  6. 10. describes an organism that remains attached to one place during most of its lifetime
  7. 11. organisms that are asymmetrical, have a hollow tube for a body that is closed at the bottom and open at the top, the filter food particles from the water and are sessile
  8. 14. invertebrates that include corals, sea anemones, and jellyfish; they have one body opening, radial symmetry and are predators
  9. 15. cells are capsules with coiled trigger like structures that help cnidarians capture food
  10. 16. symmetry is when the body parts are arranged in a similar way on both sides of the body, with each half being a mirror image of the other half
  11. 19. an animal that feeds on tiny bits of decaying matter