sophomore year vocab practice lesson 18

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Across
  1. 2. having germ-killing properties
  2. 5. the central and essential core of a cell, a central point or group around which action occurs
  3. 8. the degree of variation of life within a specific environment or species
  4. 11. the study of cells
  5. 13. the process of converting light into energy
  6. 14. to change the form of a cancerous tumor, as in accelerating its growth
Down
  1. 1. capable of being transmitted through disease- causing organisms
  2. 3. the study of disease
  3. 4. unit- a measurement used in astronomy equal to the distance between the earth and the sun; approximately 93,000,000 miles
  4. 6. the twice-a-year occurrence- summer and winter- during which the sun is at its greatest distance from the earth
  5. 7. the health care of the elderly
  6. 9. the study of plants
  7. 10. table- an organized visual display of chemical elements and their properties
  8. 12. the study of heredity, genes, and inherited traits
  9. 15. the grouping of living organisms inhabiting the same environment