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An intertwined mesh of food chains, illustrating a more complete set of interactions from an ecosystem
A level of energy passage in a food chain/web/pyramid. Each successive unit contains 1/10 the energy of the previous
Caused by lightning strikes and anaerobic bacteria; converts nitrogen (N2) into ammonia (NH3)
Nitrites (NO2-), nitrates(NO3-), ammonium (NH4-) and ammonia (NH3-) are all absorbed by plants to make proteins, DNA, and RNA
The decomposition of waste or dead matter releases nitrogen (N2) into the soil, where decomposers convert it to ammonia (NH3-)
Competitive Exclusion Principle
If there are similarities between two organisms' niches, competition will arise, forcing one into either extinction, or evolution into a different niche
human population growth
Growing almost exponentially for centuries and birth rate is higher than death rate in most countries
benefits of wetlands
provide food and protective habitats for many aquatic animals, protect coastlines from erosion, and reduce damage from hurricanes
Naval ship yard history
one of the biggest shipyard in west coast (navy); using a lot of toxins for atomic bombs in 2nd world war → discovered toxins and pesticides in water → SUPER FUND CLEAN UP BY GOV'T
What characteristics do all living this have?
Cellular based, reproduction, evolution, adapt to environment, grow and develop, use process energy, metabolism, utilize water, DNA RNA
What issues in CA
2% of water is usable the rest is frozen or salty
desalination is $$$ not practica
CA: droughts not enough rain
have to share water
When we do our best to conserve water how are we helping other people and the natural ecosystem?
water budgeting because when the city gets less water the environment gets more water
What is the concern about water?
we don't have enough fresh water, most is in oceans, polluted or frozen
What natural and human induced actions release excess Carbon into the atmosphere?
Burning coal, cutting down trees
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