nature a-z abcdefghijabcdefghij klmnopqrstklmnopqrst uvwxyzuvwxyz
TRANSCRIPT
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Nature A-ZA
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Goal #1: Feeding Relationships
I. Energy Flow)
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All living things rely on plants for energy…
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Q: Where do all the plants get their Energy?
The sun is the major input of energy for all life on Earth!
Without energy, living things can’t function!
The Sun!
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“Self Feeders”AKA producers
Get energy from:Chemicals Sunlight
Known as:
Chemosyntheis PhotosynthesisEx: Hydrothermal Vent Ex: Green Plant
Autotrophs
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“Other Feeders”AKA consumers
Definition: Organisms that must consume others to get energy.
5 types:
Heterotrophs
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1. Herbivores – Eat Plants Only
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2. Carnivores – Eat Animals Only
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3. Omnivores – Eat Plants & Animals
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4. Detritivores/ ScavengersEat dead/decaying matter & the decomposers eating it
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5. DecomposersBreak down organic compounds
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II. Food Chain
• A diagram that shows the one-way direction that energy flows through an ecosystem.
• Arrows are used to show which way energy is being transferred.
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Energy flows through an ecosystem in one direction:
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Raccoon
Frog
Grasshopper
Leaf
Copy this food chain!
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Rules for making a food chain:1. Must always start with a producer.
2. Arrows must point to the one that is receiving the energy.
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Raccoon
Frog
Grasshopper
Leaf
Now draw the arrows in the
correct direction!
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Do not write this.Raccoon
Frog
Grasshopper
Leaf
Why would you not write the food chain this way?
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Rules for labeling a food chain:
1. Levels of a food chain are called Trophic Levels2. The first trophic level is always a Producer
3. The remaining trophic levels are Consumers» 1st order consumer » 2nd order consumer» 3rd order consumer
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Raccoon
Frog
Grasshopper
LeafLet’s Label:
1. the producer2. The consumers
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4. After labeling the order, you should also label the type of consumers.
(herbivore/carnivore/omnivore/detritovore/decomposer)
http://www.pbs.org/parents/dinosaurtrain/videos/video-drscotttriceratops.html
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Raccoon
Frog
Grasshopper
LeafLet’s Label:
3. The type of each consumer
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Try This one – make & label!
Bacteria
Lion
Zebra
Grass
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Analysis Questions
• How many trophic levels are in this food chain?
• Which trophic level is the lion in?• Which organism is the 1st order
consumer?• ….the 2nd order consumer?• ….the 3rd order consumer?
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HW: C#1
Energy in the Ecosystem Worksheet