Across
- 3. a group of organs that work together as a biological system to perform one or more functions.
- 4. It is responsible for coordinating and controlling many body activities.
- 5. also called voluntary muscle, in vertebrates, most common of the three types of muscle in the body.
- 7. any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
- 11. thin tissues that cover all the exposed surfaces of the body.
- 13. the smallest structural and functional unit of an organism
- 14. a usually rigid supportive or protective structure or framework of an organism especially
- 16. a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.
- 17. the material or protoplasm within a living cell, excluding the nucleus.
- 18. a regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action.
Down
- 1. typically having relatively few cells embedded in an amorphous matrix
- 2. is your body's response to anything that requires attention or action.
- 5. is anything that makes an organism or a part of an organism react in some way.
- 6. any behavior of a living organism that results from an external or internal stimulus.
- 8. is the connection made between bones in the body which link the skeletal system into a functional whole
- 9. is an organ which produces and releases substances that perform a specific function in the body.
- 10. composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts.
- 12. substance that an organism must obtain from its surroundings for growth and the sustenance of life.
- 13. the semipermeable membrane surrounding the cytoplasm of a cell
- 15. is a collection of tissues that structurally form a functional unit specialized to perform a particular function.