Biology Words #2

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. The major taxonomic group of animals and plants (6)
  2. 4. Tiny single-celled living things, some of which cause illness (8)
  3. 7. Any bundle of ___ fibers running to various organs and tissues of the body (plural) (6)
  4. 12. An essential structural component of living cells and source of energy for animals (plural) (13)
  5. 13. Nutrient in meat and beans that builds muscle (plural) (8)
  6. 14. A country with a king as head of state (7)
  7. 15. Warm-water lobsters without claws (8)
  8. 16. A bitter alkaloid found in coffee and tea that is responsible for their stimulating effects (8)

Down

  1. 1. Common name for an edible agaric (plural) (9)
  2. 2. Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings (plural) (5)
  3. 5. Layer of air around the Earth (10)
  4. 6. Used or abandoned materials for use in creating new products (9)
  5. 8. The ___ that elapses between a stimulus and the response to it (12)
  6. 9. Any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds (plural) (5)
  7. 10. Terrestrial worm that burrows into and helps aerate soil (plural) (10)
  8. 11. Any collection of particles or gases that is visible (plural) (6)