Ch 9 Emma Sollars

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.

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.