2015

Primary Succession

Energy pyramids

3 selection graphs

Levels of Organization in ecosystems A B C D E F

Biomagnification

Soil Profile

A: PRECIPITATION B: TRANSPIRATION C: ABSORPTION D: PERCOLATION E: CONDENSATION F: EVAPORATION G: RUNOFF H: PERSPIRATION/RESPIRATION

Carbon Cycle

Nitrogen cycle

Identify the Biomes AB C D E F G

Identify the Biome

Wetlands Land that contains water for all or part of the year. Characteristics: – Distinct soils – Varied species: insects, water plants, and amphibians, etc.

Wetlands, continued Why are they important? – Reduce erosion and runoff – Cycle nutrients – Reduce pollutants – Create recreational areas – Habitats to many different species – Breeding & spawning grounds – Nursery and food factories

hydroelectric Advantages: -renewable -little pollution -controllable and constant -not expensive once built Disadvantages -cant be used everywhere -initially expensive -floods the river and blocks transportation -harms ecosystems-fish ladders

Geothermal Advantages: -renewable -little pollution -controllable and constant -not expensive once installed Disadvantages -cant be used everywhere -initially expensive -difficult to install after house is built -Steam can contain minerals and chemicals.

Solar energy Advantages: -renewable -little pollution -not expensive once installed -abundant Disadvantages -not constant -initially expensive -PV cells made of toxic chemicals -harms ecosystems-birds and insects

Wind energy Advantages: -renewable -no pollution -not expensive once installed Disadvantages -not constant or controllable -initially expensive -noisy and eyesore -harms ecosystems-birds

Biomass Advantages: -renewable -less pollution -reduces trash -fuel made in US -constant and controllable Disadvantages -gives off CO2 -lack of infrastructure-gas pump -raised food prices -ashes are hazardous

STUDY!!!!!!