Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making...
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Transcript of Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making...
![Page 1: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/1.jpg)
Energy Energy Flow in Flow in
EcosysteEcosystemsms
![Page 2: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/2.jpg)
All Organisms Need Energy To Survive!
• Some organisms get energy by making it themselves
• These organisms are called autotrophs
![Page 3: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/3.jpg)
All Organisms Need Energy To Survive!
• Some organisms get energy from other organisms
• These organisms are called heterotrophs
![Page 4: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/4.jpg)
Autotrophs• Another word for autotroph is producer
• Examples of autotrophs include grass, algae and trees
• Autotrophs make their own energy (food) by using the sun’s energy to convert water and carbon dioxide into a form of food that they can use called glucose
• This process is called photosynthesis
![Page 5: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/5.jpg)
What Happens to all the Energy Made by Autotrophs/Producers?
• They use most of it to carry out their functions (growing, reproducing, etc.)
• Some of it is lost in the atmosphere as heat
• Only 10% of the energy is available for the organisms that eat them
![Page 6: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/6.jpg)
Heterotrophs• Another word for heterotroph is consumer
• Examples of heterotrophs include dogs, fish, elephants, and mushrooms
• Heterotrophs get their energy by consuming/eating other organisms
• There are many different types of heterotrophs/consumers…
![Page 7: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/7.jpg)
Heterotrophs• Primary Consumers only eat plants
(herbivores)
• Secondary Consumers eat primary consumers (carnivores/omnivores)
• Tertiary Consumers eat secondary consumers (carnivores/omnivores)
• Scavengers feed off of dead consumers
• Decomposers feed by breaking down organic matter from dead organisms
![Page 8: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/8.jpg)
What Happens to all the Energy Consumed by Heterotrophs?
• They use most of it to carry out their functions (growing, reproducing, etc.)
• Some of it is lost in the atmosphere as heat
• Only 10% of the energy is available for the organisms that eats them
![Page 9: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/9.jpg)
Food Chains• Food chains show the transfer of energy
from the sun to producer to consumer
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• Arrows point in the direction that the energy is going
![Page 10: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/10.jpg)
Food Webs
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• Very rarely in nature is the transfer of energy in an ecosystem as simple as a single food chain
• Food webs are interconnected food chains that show feeding relationships of many organisms in an ecosystem
![Page 11: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/11.jpg)
Food Webs
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![Page 12: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/12.jpg)
Energy Pyramids• An energy pyramid is yet another way of
showing the transfer of energy in an ecosystem
• Each level is called a trophic level
• They also show– How amount of available energy decreases for
higher consumers– That it takes a large number of producers to
support a small number of tertiary consumers
![Page 13: Energy Flow in Ecosystems. All Organisms Need Energy To Survive! Some organisms get energy by making it themselves These organisms are called autotrophs.](https://reader035.fdocuments.in/reader035/viewer/2022062722/56649f385503460f94c542b2/html5/thumbnails/13.jpg)
Energy Pyramids