6.2 - An ecosystem is composed of all the populations that are living in a certain space and the physical factors with which they interact.
Populations in ecosystems are affected by biotic factors, such as other populations, and abiotic factors, such as soil and water supply.
Populations in ecosystems can be categorized as producers, consumers and decomposers of organic matter.
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C 4. Describe how abiotic factors, such as temperature, water and sunlight, affect the ability of plants to create their own food through photosynthesis.
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C 5. Explain how populations are affected by predator-prey relationships.
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C 6. Describe common food webs in different Connecticut ecosystems.
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6.4 - Water moving across and through earth materials carries with it the products of human activities.
Most precipitation that falls on Connecticut eventually reaches Long Island Sound.
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C 10. Explain the role of septic and sewage systems on the quality of surface and ground water.
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C 11. Explain how human activity may impact water resources in Connecticut, such as ponds, rivers and the Long Island Sound ecosystem.
