Science

1. are muscular vessels that carry blood away from the heart
4. is a group of tissues with similar functions.
8. blood vessel which carries blood toward the heart
10. are tiny blood cells that help your body form clots to stop bleeding Platelets
15. the spontaneous passage or diffusion of water or other solvents through a semipermeable membrane
16. small blood vess
17. Theory that each living things is made of cells
18. A tissue, organ or organism that contains multiple cell

2. Not far below the collarbone and in back of the right side of the breastbone
3. There are two of them in the human heart
5. also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders
6. an immunoglobulin
7. juice digestive fluid secreted by the glands in the mucous membrane of the stomach
9. A tissue, organ or organism that contains one cell
11. the most common
12. Biggest arterie
13. The fine hairlike projections from certain cells such as those in the respiratory tract that sweep in unison and help to sweep away fluids and particlesmitochondria store calcium for cell signaling activities
14. Cells modifid by shape and size.
17. Define the shape of a plant cell