Science shepherd biology ch 26 animals 1

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Across
  1. 3. the intake of nutrients specifically through the mouth
  2. 4. an organism that contains male and female reproductive parts
  3. 5. animals that obtain their nutrition from the water moving through their structure
  4. 7. does not move
  5. 11. the individual formed when a zygote divides and tissues form
  6. 12. the high concentration of sensory tissues, including a brain, in the anterior (head) region
  7. 14. the part of an animal that houses the digestive organs
  8. 15. a single-celled diploid organism which is formed when a sperm fertilizes an egg
  9. 16. a body cavity
  10. 17. refers to the fact that the body is broken down into a series of repeated units
  11. 19. the head region
Down
  1. 1. animals with backbones
  2. 2. animals without backbones
  3. 6. tail region
  4. 8. biologists who study animals
  5. 9. the bottom or front side
  6. 10. a polymer of glucose that animals use to store their energy
  7. 13. openings in a sponge's body
  8. 14. layers that form as the cells begin to build up in the embryo
  9. 18. the mesoderm derived tube