cross word lab

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Across
  1. 3. Medusa body is free swimming & sexual
  2. 4. Fishes – 3 groups:Jawless Fish,Cartilaginous Fish,Bony Fish, Reptiles, Birds, Mammals
  3. 6. Sponges , Ecological Roles of Sponges
  4. 7. echinoderms have Water vascular system
  5. 12. sponges Reproduce as hermaphrodites sexually
  6. 14. rely on external environmental heat sources to regulate body temperature,
  7. 16. Placental Mammals
  8. 17. Spiny skin, most radial symmetry,
  9. 18. generate their own body heat through high metabolic rates to maintain a constant internal temperature,
  10. 19. Arthropods Grow by molting
  11. 20. Reproduce asexually by budding or fragmentation
  12. 21. the sea floor
  13. 22. Mammals have Mammary Glands
Down
  1. 1. Sponges
  2. 2. Bony Fish – make up 95% of all fishes, skeleton of bone, swim bladder for buoyancy, scales
  3. 5. Cnidarians ,Echinoderms
  4. 8. Ecological Relationships of Cnidarians , Worms, Ecological Roles of Marine Worms, Molluscs, Ecological Role of Molluscs,Arthropods,Ecological Roles of Arthropods, Echinoderms,Ecological Roles of Echinoderms
  5. 9. Worms ,Molluscs , Arthropods,
  6. 10. Exoskeleton, segmented bodies, jointed appendages, highly developed sense organs, bilateral symmetry
  7. 11. Amniotic eggs – covered with a protective leathery shell
  8. 13. Polyp body lives sessile & is generally asexual
  9. 15. Jawless Fish Lack jaws & paired fins, no scales, skeleton made of cartilage