1. Cell Theory Practice

2. Put each list in order from least complex to most complex
Bone tissue, cat, brain, bone cell, endocrine system
Nervous system, intestine, earthworm, skin cell, blood
Biceps, muscle cell, muscle tissue, skeletal system, Arnold Schwarzenegger
Fat cell, heart, respiratory system, President Obama, skin tissue
Lung, frog, muscle tissue, digestive system, nerve cell

3. Which term best describes each word?
Cell tissue organ organ system organism
Caterpillar circulatory system
Liver grass
Blood nerve tissue
Skin cell gizzard
Eye bone cell

4. Don’t forget to study vocab!
Cell
Tissue
Organ
Organ system
Organism
Unicellular
Multicellular
Prokaryote
eukaryote