1. unit 1 review ecosystems biotic and abiotic factors populations and communities limiting factors ecological roles - producers, comumers, decomposers Consist of living and non-living, habitats examples - water, air - prey, plants one species many populations (e-g. SJ B)

2. predator - prey and competition types of symbiosis mutualism commensalism parasitism Trophic levels and food chains

5. ecological pyramids energy biomass numbers food webs

6. biomes and communities role of climate seasons and weather major land biomes 6 types

7. adaptations and natural selection coevolution adaptive radiation mimicry types of competition resource partitioning and competitive exclusion

8. s uccession primary secondary

9. cycles of matter organic and inorganic compounds water cycle carbon cycle nitrogen cycle phosphorus cycle

10. living cycle (biotic) non-living cycle (abiohi)

13. pollutants natural weather and geologic

14. manmade pollutants LAND AIR WATER

15. bioaccumulation and biomagnification human impact agriculture aquaculture forestry