Characteristics of Life

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 5. Tiny single-celled living things, some of which cause illness (8)
  2. 7. To show a ___ or a reaction to something (7)
  3. 8. Metabolic equilibrium actively maintained by several complex biological mechanisms that operate via (11)
  4. 12. Living things like trees and flowers that grow in soil (6)
  5. 14. Any living or extinct member of the family Hominidae characterized by superior intelligence (plural) (6)

Down

  1. 1. To undergo a chemical ___ (5)
  2. 2. A segment of DNA that is involved in producing a polypeptide chain (plural) (5)
  3. 3. To cause to continue in a certain state, position, or activity (8)
  4. 4. To have offspring or produce more individuals of a given animal or plant (9)
  5. 6. To pass into a condition gradually, take on a specific property or attribute (4)
  6. 9. The natural world around us (11)
  7. 10. Living things like dogs and birds (7)
  8. 11. Tiniest unit of living things (plural) (5)
  9. 13. A long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like (3)