biology

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Across
  1. 3. a membrane-bound organelle found in eukaryotic cells
  2. 6. also known as allelic drift or the Wright effect
  3. 7. the process by which a parent cell divides into two daughter cells
  4. 8. is the division of a single entity into two or more parts
  5. 10. the variety and variability of life on Earth.
  6. 13. is the scientific study of microorganisms
  7. 14. the branch of animal biology
Down
  1. 1. the origin of life
  2. 2. also called inheritance or biological inheritance
  3. 4. the termination of a kind of organism or of a group of kinds
  4. 5. consists of all the organisms and the physical environment
  5. 9. is the scientific study of functions and mechanisms in a living system
  6. 10. a member of a large group of unicellular microorganisms
  7. 11. large biomolecules and macromolecules
  8. 12. any close interaction between two organisms