1. 3.3 Cycles of Matter Matter is recycled within and between ecosystems
Matter is transformed

2. Water Cycle Water exists as three states simultaneously
on Earth (liquid, solid, gas)
Evaporation: liquid water changes to gas
Transpiration: evaporation of water from leaves of plants

3. Nutrient Cycles
Nutrients: chemical substances an organism needs to live

4. Carbon is key ingredient of living tissue

5. Nitrogen is needed to make proteins

6. Phosphorus is needed for nucleic acids

7. Nutrient Limitation
Primary productivity: rate at which organic material is made by producers
Limiting nutrient: single nutrient that is scarce or cycles slowly and limits the growth of organisms in an ecosystem

9. Algal Bloom: an immediate increase in the amount of algae and other producers