Energy Flow Through Ecosystems Goal Trace energy flow
- Slides: 12
Energy Flow Through Ecosystems Goal: Trace energy flow from the sun through living things.
Ecosystem and Energy Roles n n Ecosystem: all living & non-living things that interact in an environment Energy Role in an Ecosystem q Determined by: n n How it obtains energy How it interacts with other living organisms in its ecosystem
Trace energy flow from the sun through living things…. n n The sun: provides energy Producers: harness energy from the sun q n Consumers: organisms that eat something else q n ex. plants ex. animals Decomposers: return energy to the environment q ex. fungus, bacteria
Producers n n Plants harness energy from the sun through photosynthesis They are the base of every food chain q Source of food for all other animals
Consumers n 4 Types q Herbivore: eats only plants n q Carnivore: eats only meat n q Ex. Polar bear Onmivore: eats plants and animals n q Ex. Cows, horses Ex. Humans, grizzly bears Scavenger: carnivore that feeds on bodies of dead organisms n Ex. Vultures
Decomposer n Decomposers break down wastes and dead organisms and return the raw materials to the environment q Ex. Bacteria, fungi
Energy flow through biological systems
Food Chains n Food Chain: series of events in which one organism eats another and obtains energy
Food Chains Continued n n n Arrows always points in the direction of energy flow 1 st organism is always the producer 2 nd organism is the consumer that eats the producer q n 3 rd organism is the consumer that eats the 1 st level consumer q n Primary consumer Secondary consumer And so on…. .
Energy Pyramid n energy is not transferred from one object/organism to the next with 100% efficiency q n Some of the energy is lost to the environment (or universe) as heat or light Energy Pyramid shows the amounts of energy that moves from one level to the next
Sample Energy Pyramid
Energy Transfer “Rule of 10”. n n Only about 10% of energy is transferred from one level to the next The other 90% is used by the organism to carry out its life processes or it is lost to the environment
- Horizontal trace and vertical trace
- How does energy move through most ecosystems on earth
- Chapter 4 lesson 2 energy flow in ecosystems answer key
- Which marine ecosystem contains the fewest producers
- Energy flow and chemical recycling in ecosystems
- Primary consumers
- Section 1 energy flow in ecosystems
- Section 3 energy in ecosystems
- Chapter 42 ecosystems and energy
- Regents biology food chains and energy in ecosystems
- Lesson 3 energy and matter in ecosystems answer key
- Lab food chains and energy in ecosystems
- Ecosystem energy transfer