Interactions in  Ecosystems            1
 Bioticfactors = living things (plants, animals, bacteria, fungi, protists)                                          2
 Abiotic factors = non-living things (air, water, soil, temperature, precipitation, l ight, etc..)                       ...
 Biosphere   contains    Biomes Biomes   contain    Ecosystems Ecosystems      contain    Habitats where a variety o...
 Ecosystem = a part of a biome in which biotic and abiotic components interact Can be small  tide pools, rotting log C...
ORGANISM   Individual member of a species              POPULATION           all of the members of a          certain speci...
COMMUNITY                                      all the organisms that                                  interact within an ...
 Organism Population Community Ecosystem               8
   Page 24: Questions 1-7   Chapter 2 Review Questions   Chapter 2 Vocabulary                                 9
 Producers (autotrophs)                10
 Carnivores                                 Omnivores   Detrivores                  Herbivores                        ...
 Relationshipbetween the  “eaters” and the “eaten” Predators have adaptations  to help them catch prey Prey have adapta...
 Predator-prey   cycle    If numbers of prey increase, then numbers of     predators increase (more food), which then   ...
 Page   29: Questions 1-13 Chapter   2 Review Questions Chapter   2 Vocabulary                                 14
 Symbiotic          relationships = interactions between  members of two different species                Parasitism    ...
 Both   species benefit    Biological example: bees and flowers                                            16
 One   species benefits, the other is harmed    Biological example: hookworm in dogs                                    ...
 One   species benefits, one is not affected    Biological example: barnacles on a whale                           meh. ...
 Page   32: Questions 1-11 Chapter   2 Review Questions Chapter   2 Vocabulary                                 19
 Energy flow = transfer of energy from one  organism to another in an ecosystem Energy moves in only ONE direction in an...
 TROPHIC  LEVEL = position of an organism within a food chain Trophic   levels:    PRODUCERS  produce carbohydrates fr...
22
 Most  consumers  eat more  than one type  of food and  so a web  represents a  more realistic  view of what  they eat. ...
 90% energy loss at each trophic level Less energy reaches higher trophic levels Fewer organisms at higher trophic leve...
 Page   37: Questions 1-11 Page   41: Questions 1-7, 9 & 11 Chapter   2 Review Questions Chapter   2 Vocabulary       ...
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Chapter 2 Slides

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Science 10 slides based on Chapter 2 from BC Science Probe 10.

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Chapter 2 Slides

  1. 1. Interactions in Ecosystems 1
  2. 2.  Bioticfactors = living things (plants, animals, bacteria, fungi, protists) 2
  3. 3.  Abiotic factors = non-living things (air, water, soil, temperature, precipitation, l ight, etc..) 3
  4. 4.  Biosphere contains  Biomes Biomes contain  Ecosystems Ecosystems contain  Habitats where a variety of organisms live 4
  5. 5.  Ecosystem = a part of a biome in which biotic and abiotic components interact Can be small  tide pools, rotting log Can be large  entire forest Biotic components depend on Abiotic components 5
  6. 6. ORGANISM Individual member of a species POPULATION all of the members of a certain species within an ecosystem 6
  7. 7. COMMUNITY all the organisms that interact within an ecosystem  All of the biotic factors! ECOSYSTEMpart of a biome in which biotic AND abiotic components interact 7
  8. 8.  Organism Population Community Ecosystem 8
  9. 9.  Page 24: Questions 1-7 Chapter 2 Review Questions Chapter 2 Vocabulary 9
  10. 10.  Producers (autotrophs) 10
  11. 11.  Carnivores  Omnivores  Detrivores  Herbivores 11
  12. 12.  Relationshipbetween the “eaters” and the “eaten” Predators have adaptations to help them catch prey Prey have adaptations to avoid predators  Spines, shells, camouflage, mi micry 12
  13. 13.  Predator-prey cycle  If numbers of prey increase, then numbers of predators increase (more food), which then causes numbers of prey to decrease… and so on 13
  14. 14.  Page 29: Questions 1-13 Chapter 2 Review Questions Chapter 2 Vocabulary 14
  15. 15.  Symbiotic relationships = interactions between members of two different species  Parasitism meh. Mutualism  Commensalism 15
  16. 16.  Both species benefit  Biological example: bees and flowers 16
  17. 17.  One species benefits, the other is harmed  Biological example: hookworm in dogs 17
  18. 18.  One species benefits, one is not affected  Biological example: barnacles on a whale meh. 18
  19. 19.  Page 32: Questions 1-11 Chapter 2 Review Questions Chapter 2 Vocabulary 19
  20. 20.  Energy flow = transfer of energy from one organism to another in an ecosystem Energy moves in only ONE direction in an ecosystem ARROWS used to show direction of energy flow Energy is LOST as it moves from one organism to another Original source of energy is the SUN 20
  21. 21.  TROPHIC LEVEL = position of an organism within a food chain Trophic levels:  PRODUCERS  produce carbohydrates from CO2, water and energy from the sun  CONSUMERS  get energy by eating producers and/or other consumers 21
  22. 22. 22
  23. 23.  Most consumers eat more than one type of food and so a web represents a more realistic view of what they eat. Arrows point TOWARDS consumers 23
  24. 24.  90% energy loss at each trophic level Less energy reaches higher trophic levels Fewer organisms at higher trophic levels 24
  25. 25.  Page 37: Questions 1-11 Page 41: Questions 1-7, 9 & 11 Chapter 2 Review Questions Chapter 2 Vocabulary 25

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