Ch. 14 Mammal Crossword for HHS Zoology

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Across
  1. 4. Modified sweat glands which produce milk
  2. 6. The majority of mammals are this type
  3. 8. This type of heart circulation which pumps blood to body and back to the heart
  4. 12. A large, tree-dwelling nocturnal herbivore that glides using a flap of skin that forms a between their outstretched legs
  5. 15. The only mammal that has keratin scales
  6. 16. Group of mammals that lay eggs
  7. 19. Early mammals were the size of this animal
  8. 20. The only marsupial in North America
  9. 21. This type of heart circulation which pumps blood to the lungs then back to heart
  10. 22. Name for a baby monotreme
  11. 25. A tubby, clumsy-looking aquatic herbivore
  12. 26. Mammals became dominant this many million years ago when dinosaurs went extinct
  13. 28. A specialized embryonic organ that is attached to the mother's uterus to deliver oxygen and nutrients to the developing baby
  14. 30. These teeth are used for cutting food
  15. 31. This era is known as the ‘Golden Age of Mammals’
  16. 32. A burrowing, nocturnal placental mammal with a long snout used to eat ants and termites
Down
  1. 1. The sheet of muscle located beneath the lungs used to expand and contract the chest cavity of mammals
  2. 2. Time period during which young mammals develop inside of their mother
  3. 3. The main functional purpose for having hair
  4. 5. Term referring to the ability to lay eggs
  5. 7. The single exit opening of a monotreme
  6. 9. Fluid containing fats, protein, sugars, minerals, and vitamins
  7. 10. These teeth are used for grinding food
  8. 11. Term used to describe a male platypus
  9. 13. Animals that produce their own body heat
  10. 14. Mammals hearts have this many heart chambers
  11. 15. Apes, Chimps, Humans, Prosimians, and Monkeys are part of this group
  12. 17. This bone is important in the identification of mammal fossils
  13. 18. Animals that have a constant body temperature
  14. 23. Monotreme with waterproof fur, webbed feet, flattened tail, and a rubbery muzzle
  15. 24. The missing evolutionary link between therapsids and mammals
  16. 27. Term referring to the ability to give live birth
  17. 29. A solitary, burrowing monotreme with tough spines covering the top of its body