Semester Exam Review Crossword Puzzle

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Across
  1. 3. the phenomenon in which an object changes its position over time
  2. 8. groups of cells that have a similar structure and act together to perform a specific function
  3. 10. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring
  4. 11. the fundamental molecules of life and of which all living things are composed of
  5. 14. an organ system consisting of the skin, hair, nails, and glands
  6. 16. group of organ systems to form an individual animal, plant, or single-celled life form
  7. 18. an organ system that ensures the survival of the species
  8. 20. an organ system that performs the function of excretion, the bodily process of discharging wastes
  9. 21. the production of new living organisms by combining genetic information from two individuals of different types
  10. 23. a push or pull upon an object resulting from the object's interaction with another object
  11. 24. works as a support structure for your body
Down
  1. 1. change which alters the physical properties of a substance without changing its identity
  2. 2. a self-replicating material that is present in nearly all living organisms
  3. 3. an organ system consisting of skeletal, smooth and cardiac muscles
  4. 4. group of tissues in a living organism that have been adapted to perform a specific function
  5. 5. the network of organs and tissues that help you breathe
  6. 6. controls and regulates the activities of the cell
  7. 7. a chemical messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system
  8. 9. group of organs that work together to perform a certain function in an organism's body
  9. 12. an organ system that involves the breakdown of food into small molecules, which are then absorbed into the body
  10. 13. the network of nerve cells and fibers which transmits nerve impulses between parts of the body
  11. 15. an organ system that permits blood to circulate and transport nutrients
  12. 17. a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes
  13. 19. the force by which a planet or other body draws objects toward its center
  14. 22. the formation of a new substance with different properties; cannot be undone by physical means