Almost all organisms ultimately get their  energy from the sun. Food Chains and Food Webs
<ul><li>Each organism has a specific  niche  (job) within the ecosystem . </li></ul>
Organism that uses sunlight to create food  Photosynthesis. Ex. – Green plants or algae Producer
<ul><li>Organisms that cannot make their own food.  </li></ul><ul><li>Consumers get their energy by eating other organisms...
Types of Consumers: <ul><li>1.Herbivores  – “ Plant eaters” </li></ul><ul><li>Ex. -  rabbits, cows,  horses </li></ul><ul>...
<ul><li>A.Predator  – Hunts and kills other animals (prey).  </li></ul><ul><li>Ex. Hawk </li></ul><ul><li>B.Scavenger  – F...
<ul><li>3. Omnivores   – Eat both plants and animals.  </li></ul><ul><li>Ex. bears,   coyotes, humans </li></ul><ul><li>4....
Types of Consumers: <ul><li>5.  Parasites   -   feed on living organisms.  The organism eaten is called the  host .  </li>...
<ul><li>Diagram showing the flow of energy from producer to consumer. </li></ul>Food Chain
Food Chain Order: <ul><li>1 .  Always  begins with a  producer . </li></ul><ul><li>Ex. – grass </li></ul><ul><li>2.  Prima...
Food Chain Order: <ul><li>3.  Secondary   Consumer  (second order) - begins with a  carnivore  or  omnivore . </li></ul><u...
<ul><li>Multiple food chains connected together. </li></ul><ul><li>The more chains the more stable the ecosystem. </li></u...
 
Critical Thinking <ul><li>A bumper sticker asks,  </li></ul><ul><li>“ Have you thanked a  </li></ul><ul><li>green plant to...
The End!
 
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food chains and Relationships

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Transcript of " food chains and Relationships"

  1. 1. Almost all organisms ultimately get their energy from the sun. Food Chains and Food Webs
  2. 2. <ul><li>Each organism has a specific niche (job) within the ecosystem . </li></ul>
  3. 3. Organism that uses sunlight to create food Photosynthesis. Ex. – Green plants or algae Producer
  4. 4. <ul><li>Organisms that cannot make their own food. </li></ul><ul><li>Consumers get their energy by eating other organisms. </li></ul>Consumers
  5. 5. Types of Consumers: <ul><li>1.Herbivores – “ Plant eaters” </li></ul><ul><li>Ex. - rabbits, cows, horses </li></ul><ul><li>2.Carnivores – “ Meat eaters ” – feed on animals. </li></ul><ul><li>Ex. Hawks, Lions, Raptors </li></ul>
  6. 6. <ul><li>A.Predator – Hunts and kills other animals (prey). </li></ul><ul><li>Ex. Hawk </li></ul><ul><li>B.Scavenger – Feed on dead animals. </li></ul><ul><li>Ex. Vultures, crows, flies </li></ul>Carnivores
  7. 7. <ul><li>3. Omnivores – Eat both plants and animals. </li></ul><ul><li>Ex. bears, coyotes, humans </li></ul><ul><li>4. Decomposers – Feed on animal wastes and bodies of dead organisms - Recycle nutrients. </li></ul><ul><li>Ex. Fungi, bacteria </li></ul>Types of Consumers:
  8. 8. Types of Consumers: <ul><li>5. Parasites - feed on living organisms. The organism eaten is called the host . </li></ul><ul><li>Ex. Fleas, mosquitos, ticks tapeworms </li></ul>
  9. 9. <ul><li>Diagram showing the flow of energy from producer to consumer. </li></ul>Food Chain
  10. 10. Food Chain Order: <ul><li>1 . Always begins with a producer . </li></ul><ul><li>Ex. – grass </li></ul><ul><li>2. Primary consumer (first-order)- </li></ul><ul><li>always an herbivore or omnivore . </li></ul><ul><li>Ex. – grasshopper </li></ul>
  11. 11. Food Chain Order: <ul><li>3. Secondary Consumer (second order) - begins with a carnivore or omnivore . </li></ul><ul><li>4. Tertiary Consumer (third-order) – Carnivore or omnivore </li></ul><ul><li>Decomposers may be at any step </li></ul>
  12. 12. <ul><li>Multiple food chains connected together. </li></ul><ul><li>The more chains the more stable the ecosystem. </li></ul>Food Web
  13. 14. Critical Thinking <ul><li>A bumper sticker asks, </li></ul><ul><li>“ Have you thanked a </li></ul><ul><li>green plant today?” </li></ul><ul><li>Give two reasons for appreciating a green plant. </li></ul>
  14. 15. The End!
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