| A | B |
|---|
| Osmosis | The movement of water from an area of high concentration to an area of low concentration across a semipermeable membrane |
| Semipermeable | the ability of the cell membrane to monitor what materials come into the cell and what materials leave the cell |
| Circulation | The movement of materials within a cell or between parts of an organism |
| Concentration Gradient | The difference in concentration between a region of great concentration and a region of lesser concentration |
| Xylem | A tissue that carries water and minerals up the root to the stem and leaves. |
| Phloem | Tissue that carries dissolved food manufactured in the leaves down through the stem and roots |
| Capillaries | Microscopic blood vessels in cells that exchange materials between the blood and the body cells |
| Hemoglobin | Red pigment that allows the blood to carry more oxygen |
| Open circulatory system | system where the blood is not always contained in vessels but flows openly through the body |
| Closed circulatory system | Blood is always contained in specific blood vessels unless one is broken or punctured |
