Across
- 3. Hard, whitish tissue making up the skeleton in humans and other vertebrates
- 5. A trait that a living thing gets during its lifetime
- 7. An organ of the digestive system that removes nutrients and water from digested food
- 9. The center of reading, thinking, memory, and logic
- 12. Having a single cell, and performing all life processes within a single cell
- 14. Carry blood towards the heart
- 17. The product of a male and female parent
- 18. An organism that is too small for people to see with only their eyes
- 22. Whitish fiber or bundle of fibers that transmits impulses of sensation to the brain or spinal cord
- 23. System that breaks down foods into useable sources of energy
- 25. A tough, elastic, flexible connective tissue that prevents friction between the bones
- 29. A muscular organ in the body where chemical and mechanical digestion takes place
- 30. System that protects the organic in the other body systems and gives your body structure/shape/support
- 32. Part of the digestive system that takes food into the body
- 33. Carry blood away from the heart
- 34. Having more than one cell that performs different functions in an organism
- 37. Any individual living thing
- 38. Muscles that you cannot control
- 39. A collection of nerves that send messages back and forth between different parts of your body and your brain
Down
- 1. A skill that an animal develops after it is born
- 2. A characteristic or property of an organism
- 4. System that sends electrical signals to all other body systems
- 6. A strong trait gene
- 8. A muscular tube that helps move food from the mouth to the stomach
- 10. A fluid made up of red blood cells, white blood cells, and plasma providing oxygen and nutrients to every part of the body
- 11. To receive traits from a parent or parents
- 13. Organs of the respiratory system that bring oxygen-rich air into the body and send oxygen-poor air out of the body
- 15. A weaker trait gene
- 16. The tube in the body through which air moves as it travels to and from the lungs
- 19. System that supplies oxygen to cells and gets rid of waste
- 20. System that transports nutrients and oxygen to cells throughout your body
- 21. A muscular organ that pumps blood throughout the body
- 24. System that helps with body movement
- 26. Bands or bundles of tissue capable of contracting to move the body
- 27. Muscles that you can control
- 28. Single-celled organisms without an organized nucleus, that can only be seen using a microscope
- 31. Bands of connective tissue that attach muscles to bones
- 35. The basic unit of all living things
- 36. Tough, flexible material that connects bones to bones