1. Cells that work together to perform a specific function
tissue

2. Living thing that is too small to see without a microscope
Microorganism

3. Groups of tissues that work together to carry out a certain function.
organ

4. Fungus that is a microorganism
mold

5. The basic unit of structure and function in living things.
cell

6. Organs that work together to do a job for the body.
Organ System

7. Mircoorganisms that include algae and protozoans
protists

8. Kind of microorganism shaped like rods, spirals, or balls.
Bacteria

9. What structure is found in a plant cell but not in an animal cell?
Cell wall

10. Where is connective tissue found in your body?
bones

11. Microorganisms can be
Helpful and harmful

12. Name one way that microorganisms can be harmful?
Causing red tides

13. What is the basic unit of structure and function of all living things?
cell

14. What would happen if a cell had no nucleus?
A cell would not function without a nucleus. The nucleus directs all the cell’s activities. Without a nucleus, the cell may not be able to do everything it needs to for survival.

15. What do you think would happen to the function of the circulatory system if it did not contain any muscle tissue?
Without muscle tissue, the circulatory system would not be able to pump blood to all the parts of the body.