PRE-TEST MULTIPLE CHOICE Direction: Read each question carefully and write the letter of the correct answer on your answer sheet. For items 1-2, use this diagram to answer the next two questions. X Z

1. Overlapping circles can be used to show relationships. In this diagram, levels of organization within living things are shown. If each circle is made from the smaller circles inside it, what does circle "W" stand for?

A organs B. cells C. tissues D. organ systems

2. What would circle "Y" be?
A. organs B. cells C. tissues D. organ systems

3. The brain is an example of which level of organization in a body?
A cell B. tissue D. organ system C. organ

4.A nerve is an example of which level of organization in a body
A. cell B. Tissue C. Organ D. Organ system

5. The lining of the stomach is an example of which level of organization in a body
A. Cell B. Tissue C. Organ D. Organ system​