Across
- 2. pumps blood from the heart to the lungs to get oxygen
- 4. Many non-living substances such as fluids, hormones, and pheromones are important accessories
- 6. your body's central framework
- 8. make digestive juices and enzymes that help the body digest food and liquids.
- 10. biological system consisting of specific organs and structures used for gas exchange in animals and plants
- 11. coordinates its actions and sensory information by transmitting signals to and from different parts of its body
Down
- 1. composed of specialized cells called muscle fibers
- 3. your body's outer layer
- 5. passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body.
- 7. a subsystem of the circulatory system in the vertebrate body that consists of a complex network of vessels, tissues, and organs
- 9. a complex network of glands and organs.