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