Life Science Final

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. The snail-shaped tube where sound vibrations are converted into nerve impulses by the organ of Corti (7)
  2. 4. Any animal that feeds chiefly on grass and other plants (9)
  3. 6. An essential structural component of living cells and source of energy for animals (12)
  4. 9. A sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles (8)
  5. 12. The period during which an embryo develops (9)
  6. 13. The vascular structure in the uterus of most mammals providing oxygen and nutrients for (8)
  7. 14. A blood vessel that carries blood from the heart to the body (6)

Down

  1. 1. An animal organism in the early stages of growth and differentiation that in higher forms merge (6)
  2. 2. Any of several complex proteins that are produced by cells and act as catalysts in specific (6)
  3. 3. A major division of the vertebrate brain (10)
  4. 5. Any of the minute blood vessels connecting arterioles with venules (9)
  5. 6. Tough elastic tissue (9)
  6. 7. The deep vascular inner layer of the skin (6)
  7. 8. An unborn or unhatched vertebrate in the later stages of development showing the main recognizable (5)
  8. 10. Any warm-blooded vertebrate having the skin more or less covered with hair (6)
  9. 11. Insoluble pigments that account for the color of e.g. skin and scales and feathers (7)