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30 Cards in this Set
- Front
- Back
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Amenalism
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a seedling growing deep in the shade of an adult tree
(user is harmed while other is unaffected) |
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Commensalism
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one organism benefits why the other doesn't
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Predacion
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one organism kills/consumes the other for food
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Parasltism
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benefits off the object that is being harmed
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What causes competition?
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organisms have the same niche, overlaps niches between species
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What are the two types of niches?
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generalist and specialist ( beets out other species but its own)
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Feeding Relationship Names
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top carnivore, 1st carnivore, herbivore, producer
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Law of Thermodynamics
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energy can not be created or destroyed, no energy transfer is %100 complete
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What do decomposers do?
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clean up waste and nourish the soil (recycle organic matters)
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Three Nutrients that all organisms need?
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carbon (fossil fuel), nitrate (makes bacteria usable)aminoacids=proteins, phosphate
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What are some density independent factors?
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Affect population no matter what, ex: natuunlight, behaviors natural disasters, human interference
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Density Dependent factors
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only happen if population reaches density
ex: competition for food, crowding, stress ie. |
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Limiting Nutrients
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supply is naturally low, dictates population size
(DD) |
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What influences producer population?
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nutrients in soil, location, weather, sour of energy(SUN)
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What influences nutrient cycles?
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the cycles of weather (SUN), nutrient concentration
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What are biomes?
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really large ecosystems that share the same ecosystems
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How does natural evolution work?
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olgotrophy low biod, mesotrophic perfect bio d, eutrophic low biod
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What causes aquatic animals to die off in ponds?
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excess nutrients cause algae to grow a lot, then when bacteria decomposes the algae, uses all oxygen (animals die_
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How does human evolution work?
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skip mestrophic
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What is a dead zone?
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large areas with excess algae blooms, animals migrate or die off
( stop excess nutrient, clean up algae) |
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what is ecological succession?
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the pattern of events that occur as an ecosystem becomes a climax ecosystem?
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what is climax?
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the last organism on the list of succession ( highest niche: most adapted)
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What are two types of succession?
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there is secondary which is green mountain, and there is primary which is starting from scratch
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Three types of organisms?
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Pioneer organisms(rock->soil) need nothing, primary successional (fast, need lots of food,die fast, and last one is late successional species which is slow growing, use little resources
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How populations work?
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all populations growth goes to exponential to logistic ( depends on resources)
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what is an K- strategist?
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1-2 kids, lot of time effort, high rate of survival
ex: elephant |
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what is an r-stategist?
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multiple births, no investment, low rate of offspring
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How does the greenhouse effect work?
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sun comes in, stuff sucks up sun, later the day the atmosphere is too thick for used to energy to pass back in, trapped energy
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Two types of smog?
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industrial: grey, humid, factories
photochemical: nitric acid and nocs make sulfuric acid |
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Temperature inversion?
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intensifies both type of smog, when
cold air inversion layer (WARM) cool air ( pollutants) |
