nutrition and energy flow what eats what?. how organisms get energy autotrophs make their own...
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Nutrition and Nutrition and Energy Energy
FlowFlowWhat eats what?What eats what?
How organisms get How organisms get energyenergy
Autotrophs make their own nutrientsAutotrophs make their own nutrients Plants use the sun’s energy to produce Plants use the sun’s energy to produce
nutrients nutrients Heterotrophs feed on other organismsHeterotrophs feed on other organisms
Herbivores eat plantsHerbivores eat plants Carnivores eat other animalsCarnivores eat other animals
Scavangers eat dead animalsScavangers eat dead animals Decomposers break down dead and Decomposers break down dead and
decaying plants and animalsdecaying plants and animals
Energy flow in Energy flow in ecosystemsecosystems
Food chain = simple model used to Food chain = simple model used to show how energy flows through an show how energy flows through an ecosystemecosystem
algae fish heronalgae fish heron
Energy flow in Energy flow in ecosystemsecosystems
Trophic level = step in the food chainTrophic level = step in the food chain Each higher trophic level has fewer Each higher trophic level has fewer
individuals and less energy availableindividuals and less energy available
Energy flow in the Energy flow in the ecosystemecosystem
Food chain is very simple, only one Food chain is very simple, only one pathpath
Food web = a model that shows all Food web = a model that shows all the possible feeding relationships at the possible feeding relationships at each trophic level in a communityeach trophic level in a community
Cycles in NatureCycles in Nature
Like energy, matter moves through Like energy, matter moves through trophic levelstrophic levels
Matter gets recycledMatter gets recycled The water cycleThe water cycle The carbon cycleThe carbon cycle The nitrogen cycleThe nitrogen cycle The phosphorus cycleThe phosphorus cycle
The Water CycleThe Water Cycle
Evaporation, condensation, Evaporation, condensation, precipitationprecipitation
The Carbon CycleThe Carbon Cycle
Photosyntheis converts COPhotosyntheis converts CO22 to to energy rich carbon molecules used energy rich carbon molecules used by organisms to growby organisms to grow
The Nitrogen CycleThe Nitrogen Cycle
Bacteria convert nitrogen in the air Bacteria convert nitrogen in the air into the soil where plants can use it into the soil where plants can use it to make proteinsto make proteins
The Phosphorus CycleThe Phosphorus Cycle
Plants get phosphorus from the soil, Plants get phosphorus from the soil, plants and animals need it plants and animals need it
to growto grow