Natural Selection

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Across
  1. 2. The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
  2. 7. SELECTION CHARLES DARWIN'S THEORY
  3. 8. TO CONTINUE TO LIVE AND EXIST
  4. 10. THE THEORISTS WHO DEVISED THE THEORY OF NATURAL SELECTION
  5. 11. A complex network or interconnected system
  6. 12. A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
Down
  1. 1. The physical world, including plants, animals, the landscape, and other features and products of the earth.
  2. 3. DARWIN THE THEORISTS WHO DEVISED THE THEORY OF NATURAL SELECTION
  3. 4. THE GRADUAL DEVELOPMENT OF SOMETHING
  4. 5. HISTORY OF PAST SPECIES
  5. 6. WIPED OUT
  6. 9. THE GENETIC FEATURES AND CHARACTERISTICS OF AN ORGANISM