1. Levels of Cellular Organization

2. Unicellular Organisms
Have just one cell that do all of it’s life processes
No levels of organization
Advantages- need fewer resources, can survive in different environments
Disadvantages- organism dies if one cell dies

3. Multicellular Organisms
Cells are specialized (have a specific job)
Larger
Longer life span
Need more resources to live
Cells depend on each other to keep organism alive

4. Levels of Organization for Multicellular Organisms
Cell  Tissue  Organ  Organ System  Organism
Smallest  Biggest
Least complex  Most complex

5. tissue Groups of similar cells working together
4 types: nervous, epithelial, connective, and muscle
Nervous- messaging system for your body
Epithelial- protective and forms boundaries (skin)
Connective- holds body together, provides support and nourishment (bones & blood)
Muscle- movement

6. What is plant Tissue?
Read p. 191 in your book and complete the Venn diagram with the people at your table. Then answer the “Visualize It!” question.

7. Organs Tissues working together to perform a specific function
Brainstorm a list of organs found in animals and plants Animals Plants

8. Organ Systems
Groups of organs working together to perform a specific function
Examples: digestive system, respiratory system

9. Structure and Function
Structure-how it is arranged
Function- what it does
Answer the “Visualize It!” question on p. 194

10. Table 1- p. 195 “Can’t Touch This” Table 2- p. 195 “Blow on Your Food”
Read and Explain to the class (How do the levels of organization effect organisms?)
Table 1- p. 195 “Can’t Touch This”
Table 2- p. 195 “Blow on Your Food”
Table 3- p. 195 “Night Vision”
Table 4- p. 196 “Visualize It!”
Table 5- p. 197 “Visualize It!”
Table 6- p. 197 “Delivering Nutrients”
Table 7- p. 197 “Delivering Oxygen”
Table 8- p. 197 “Removing Wastes”