Review

 What part of the cell allows some materials to enter and other materials to exit?  What process do most cells use to get energy?  Red blood cells look like small, smooth, flexible saucers. How does this shape help them perform their function?  In what body part would you find cells with hair like structures? What is their purpose?  What is the order of organization in an animal from simplest to most complex?

 What makes up muscle tissue?  Name the two organ systems that work together to move the body.  A cell has branch-like structures. What organ did this cell most likely come from?  What is the job of the mitochondria?  True or False. All plant and animal cells have a cell membrane.  What type of cell makes up your skin?

 What is the name of a group of similar cells working together to perform the same function?  What part of the cell contains chromosomes made of DNA?  Name all the organs in your book that are found in plants.  What cellular structure acts like a stomach for the cell?

 Name two systems that work with the muscle system and explain how these systems work together.  Cell, Tissue, Organ, Organ System, and Organism: How do these structures work together?  You will need to be able to identify the difference between an animal and plant cell.