Energy flow & primary productivity (article) | Khan Academy
https://www.khanacademy.org/science/biology/ecology/intro-to-ecosystems/a/energy-flow-primary-productivity
OverviewKey points:IntroductionProducers are the energy gatewayPrimary productivityHow does energy move between trophic levels?Ecological pyramidsEnergy pyramidsBiomass pyramidsNumbers pyramidsEnergy pyramids represent energy flow through trophic levels. For instance, the pyramid below …Energy pyramids are always upright, that is, narrower at each successive level (unless organisms enter the ecosystem from elsewhere). This pattern reflects the laws of thermodynamics, which tell us that new energy can't be created, and that some must be converted to a not-useful form (hea…See more on khanacademy.orgMissing: tundraMust include: tundra Energy pyramids represent energy flow through trophic levels. For instance, the pyramid below …Energy pyramids are always upright, that is, narrower at each successive level (unless organisms enter the ecosystem from elsewhere). This pattern reflects the laws of thermodynamics, which tell us that new energy can't be created, and that some must be converted to a not-useful form (hea… tundra
Energy pyramids represent energy flow through trophic levels. For instance, the pyramid below …Energy pyramids are always upright, that is, narrower at each successive level (unless organisms enter the ecosystem from elsewhere). This pattern reflects the laws of thermodynamics, which tell us that new energy can't be created, and that some must be converted to a not-useful form (hea…
tundra
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