Across
- 4. controls growth, development, and metabolism; maintains homeostasis
- 5. group of different types of tissues that work together to perform a single function
- 7. breaks down food, absorbs nutrients, eliminates wastes
- 8. guards against infection and injury and ultraviolet radiation from the sun
- 12. brings in oxygen needed for cellular respiration and removes excess carbon dioxide from the body
- 15. process in which a stimulus produces a response that opposes the original stimulus
- 21. works with skeletal system to produce voluntary movement
- 22. movements of the body are possible because of this tissue
- 23. allows movement, stores mineral reserves, protects internal organs, contains cells that produce blood cells
- 24. group of cells that perform a function
- 25. recognizes and coordinates the body’s response to changes in internal and external environments
Down
- 1. supply raw materials for growth and repair of structures such as skin and muscle
- 2. help the body absorb fat- soluble vitamins and are a part of cell membranes, nerve cells, etc
- 3. type of tissue that includes fat cells, bone cells, blood cells, etc
- 6. basic unit of structure
- 9. produces gametes; in females, nurtures and protects developing embryo
- 10. tissue that lines the interior and exterior body surfaces
- 11. collects fluid lost from blood vessels and returns it to the circulatory system
- 13. transports oxygen, nutrients, and hormones to cells, removes cell wastes, regulates body temperature, etc
- 14. nerve impulses are transmitted through the body by this tissue
- 16. eliminates waste product from the body
- 17. major source of energy for the body
- 18. describes the relatively constant internal physical and chemical conditions that organisms despite changes in internal and external environments
- 19. system group of organs that perform closely related functions
- 20. organic molecules that the body need in very small amounts