Needs of Living Organisms
Organism <ul><li>A living thing </li></ul><ul><li>Can be  </li></ul><ul><ul><li>Unicellular </li></ul></ul><ul><ul><li>Mul...
Organism needs <ul><li>Every organism has different needs </li></ul><ul><li>Consider the needs of a shark compared with a ...
Water <ul><li>Need liquid fresh water (only 1% of total water on Earth) </li></ul><ul><li>Organisms in the ocean depend on...
Food and Energy <ul><li>Food: </li></ul><ul><li>Energy </li></ul><ul><li>Sun -> Producers -> Consumers -> Decomposers </li...
Food Poisoning through Food Chain- Mercury (Hg)
Living Space <ul><li>Area to collect needed food and for mating </li></ul><ul><li>Space must provide all required Sunlight...
Territorial Animals
 
Suitable Climate <ul><li>All living organisms have a range of temperatures that they can live in </li></ul><ul><li>Some su...
Dormancy  <ul><li>Life processes slow down </li></ul><ul><li>In animals it is called  hibernation </li></ul><ul><ul><li>He...
Review <ul><li>Organisms have common needs </li></ul><ul><ul><li>Water </li></ul></ul><ul><ul><li>Energy </li></ul></ul><u...
Why is Earth the only planet that supports life?
What factors allow the Earth to support life? <ul><li>Liquid Water ( Hydrosphere ) </li></ul><ul><ul><li>Insulator, chemic...
Hydrosphere <ul><li>(from  Greek  ὕδωρ -  hydor , &quot; water &quot; and σφαῖρα -  sphaira , &quot; sphere &quot;)  </li>...
Sources of Fresh Water <ul><li>Lakes </li></ul><ul><li>Streams (rivers) </li></ul><ul><li>Ground water </li></ul><ul><ul><...
Aquifers and Artesian Wells
Review <ul><li>Why does Earth Support Life? </li></ul><ul><li>How much of the Earth is water? </li></ul><ul><li>How much o...
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01.needs of living organisms earth

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01.needs of living organisms earth

  1. 1. Needs of Living Organisms
  2. 2. Organism <ul><li>A living thing </li></ul><ul><li>Can be </li></ul><ul><ul><li>Unicellular </li></ul></ul><ul><ul><li>Multicellular </li></ul></ul>
  3. 3. Organism needs <ul><li>Every organism has different needs </li></ul><ul><li>Consider the needs of a shark compared with a polar bear, compared to you. </li></ul><ul><li>Common needs: </li></ul><ul><ul><li>Water </li></ul></ul><ul><ul><li>Energy </li></ul></ul><ul><ul><li>Living space </li></ul></ul><ul><ul><li>Suitable climate </li></ul></ul>
  4. 4. Water <ul><li>Need liquid fresh water (only 1% of total water on Earth) </li></ul><ul><li>Organisms in the ocean depend on water quality to support life </li></ul><ul><ul><li>Temperature </li></ul></ul><ul><ul><li>Nutrients </li></ul></ul><ul><ul><li>Dissolved Oxygen (can relate to water temperature) </li></ul></ul><ul><ul><li>Lack of Pollution </li></ul></ul>
  5. 5. Food and Energy <ul><li>Food: </li></ul><ul><li>Energy </li></ul><ul><li>Sun -> Producers -> Consumers -> Decomposers </li></ul><ul><li>Sun -> Plants -> Animals -> Fungi/ Bacteria </li></ul><ul><li>Nutrients </li></ul><ul><li>Minerals, Vitamins, other chemicals </li></ul><ul><li>Pollutants or poisons can enter an organism through these means (biological magnification) </li></ul>
  6. 6. Food Poisoning through Food Chain- Mercury (Hg)
  7. 7. Living Space <ul><li>Area to collect needed food and for mating </li></ul><ul><li>Space must provide all required Sunlight, Water, and Shelter to support organisms living there </li></ul><ul><li>Some animals require and protect a territory : a claimed living space by an individual animal or group of animals </li></ul>
  8. 8. Territorial Animals
  9. 10. Suitable Climate <ul><li>All living organisms have a range of temperatures that they can live in </li></ul><ul><li>Some survive cold seasons by going dormant . </li></ul><ul><li>Birds and Mammals maintain the same internal body temperature (warm-blooded) – requires 10x more food to maintain this homeostasis. </li></ul>
  10. 11. Dormancy <ul><li>Life processes slow down </li></ul><ul><li>In animals it is called hibernation </li></ul><ul><ul><li>Heart rate drops, breathing slows, body temperature drops, sleep like state </li></ul></ul><ul><ul><li>Low food requirements – can live off of fat reserves </li></ul></ul>
  11. 12. Review <ul><li>Organisms have common needs </li></ul><ul><ul><li>Water </li></ul></ul><ul><ul><li>Energy </li></ul></ul><ul><ul><li>Living space </li></ul></ul><ul><ul><li>Suitable climate </li></ul></ul>
  12. 13. Why is Earth the only planet that supports life?
  13. 14. What factors allow the Earth to support life? <ul><li>Liquid Water ( Hydrosphere ) </li></ul><ul><ul><li>Insulator, chemical reactions </li></ul></ul><ul><li>Proper temperature </li></ul><ul><ul><li>Due to distance from sun and atmosphere </li></ul></ul><ul><li>Atmosphere </li></ul><ul><ul><li>Protection from space </li></ul></ul><ul><ul><li>Right materials (Hydrogen, Carbon, Oxygen, Nitrogen, etc.) </li></ul></ul>
  14. 15. Hydrosphere <ul><li>(from  Greek  ὕδωρ -  hydor , &quot; water &quot; and σφαῖρα -  sphaira , &quot; sphere &quot;) </li></ul><ul><li>71% of the Earth Surface is covered in Water </li></ul><ul><li>97% is salt water </li></ul><ul><li>2/3 of fresh water is locked up in glaciers </li></ul>
  15. 16. Sources of Fresh Water <ul><li>Lakes </li></ul><ul><li>Streams (rivers) </li></ul><ul><li>Ground water </li></ul><ul><ul><li>Must build a well to get to this </li></ul></ul><ul><li>Glaciers (or glacier melt) </li></ul>
  16. 17. Aquifers and Artesian Wells
  17. 18. Review <ul><li>Why does Earth Support Life? </li></ul><ul><li>How much of the Earth is water? </li></ul><ul><li>How much of that water can be used for drinking water? </li></ul>

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