Across
- 2. are proteins produced by white blood cells and form part of a specific immune response to foreign materials.
- 4. contain small amounts of weekend or dead pathogens that stimulate an immune response.
- 7. a living things.
- 8. bone functions forms the hard layer covering the outside layer of bone and is known as the basic supportive tissue of the body.
- 13. the bones of this skeleton function mainly to allow movement.
- 16. is a chemical marker on a cell's surface that indicated whether the cell is from your body or is a foreign material.
- 18. is a group of organs that together perform a function that helps the body meet its needs for energy and materials.
- 20. a substance that an organism needs to live.
- 21. is known as the major ingredient in bone.
- 22. fluid that is transported by the lymphatic system.
Down
- 1. resistance to a sickness.
- 3. strong but light weight bone, this forms the inner layer of bone.
- 5. is the part of the skeleton that forms the axis and provides support and protection.
- 6. functions to defend the body against foreign materials.
- 8. hairlike protrusions that trap materials entering your respiratory system.
- 9. the ability of your body to maintain internal conditions.
- 10. what is an advantage of having many bones in the spinal column?
- 11. is a group of similar cells that work together to perform a particular function.
- 12. disease-causing agents.
- 14. what is the bodies first defense reaction against infection?
- 15. hold bones together.
- 17. are medicines that block the growth and reproduction of bacteria.
- 18. is a structure that is made up of two or more types of tissue that work together to carry out a function in the body.
- 19. system this system serves as an anchor for all of the body's movement,provides support, and protects soft organs inside the body.
- 21. is the basic unit of life.