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WedNesday May 7 th 2014

QU: What is a scavenger? *Need to make up your test? Come talk to me* **Chapter 15 Quest on Tuesday May 14 th ** OBJ: Intro to Ecology. WedNesday May 7 th 2014. Biodiversity. Variety of Life on Earth. Categories of Organisms in an Ecosystem. Producers.

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WedNesday May 7 th 2014

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  1. QU: What is a scavenger? *Need to make up your test? Come talk to me* **Chapter 15 Quest on Tuesday May 14th** • OBJ: Intro to Ecology WedNesday May 7th 2014

  2. Biodiversity Variety of Life on Earth

  3. Categories of Organisms in an Ecosystem

  4. Producers Organism which makes its own food (plants)

  5. Consumers Organism which must eat another organism

  6. Herbivore Consumer which eats plants (producers)

  7. Carnivore Consumer which eats other animals

  8. Omnivore Consumer which eats plants and animals.

  9. Decomposer Consumer which breaks down the remains of another dead organism into unrecognizable materials.

  10. Predator Carnivore which hunts other organisms for food

  11. Scavenger Carnivore which finds and eats already dead organisms

  12. Energy Transfer in an Ecosystem

  13. Biomass Organic material manufactured by producers.

  14. Trophic Level Feeding level in an ecosystem.

  15. QU: Keeping a food web in mind, why would a more diverse ecosystem be better? • OBJ: Ch15 Notes, Fluctuations of a Food Web, Thursday May 8th 2014

  16. Food Web A pattern of energy transfer in an ecosystem consisting of multiple varieties of food chains. Hawk Cottonwood Tree Rabbit Leaf Hopper Sun Sunflower Grasshopper Frog Snake Sage Brush Coyote Mouse

  17. Food Chain Pathway of energy from one trophic level to another Sun Flower Grasshopper Frog Snake

  18. Energy Pyramid A diagram that shows the relationships of quantities of energy that flow through an ecosystem.

  19. Estuary Groups

  20. Estuary Groups

  21. CHAPTER 15 NOTES • Male Donkey + Female Horse = Mule Biological Species Concept: A species is a group of organisms that can breed and produce fertile offspring.

  22. Speciation • The creation of a new species is considered SPECIATION.

  23. Barriers to producing offspring - • Reproductive Isolation – • Timing – Different Breeding Seasons Ex. Jan. or Feb • Behavior – Different Mating Rituals ex. Mating calls • Habitat – Different habitats in the same geographical location

  24. Geographic Isolation Barriers to producing offspring - • Plants vs. Animals • stationary vs. mobile

  25. The more barriers-more speciation • Speciation: the gradual change into two separate species • More barriers less likely to exchange genetic material • Less sharing of material-more differences occur • The more differences the more likely we will create two new species

  26. QU: Describe a species. HW: Due on Monday!! • OBJ: Over Ch 14 Test, Taxonomy Friday May 9th 2014

  27. Where are you from?

  28. Answers usually vary depending where you are at that point. • Michigan? • Another state? • Another country? • Another planet? Where are you from?

  29. Saying where you are from can be confusing… • Imagine trying to name every individual species… • Special way to classify all organsims!! • Called TAXONOMY…what you will be reading about today Can be confusing…..

  30. QU: Why do common names present problems to scientists? Chapter 15 and 36 Test on THURSDAY!! • OBJ: Taxonomy and the 3 Domains Monday May 12th 2014

  31. A dichotomous key is a tool that allows the user to determine the identity of items in the natural world. • Keys consist of a series of choices that lead the user to the correct name of a given item. Dichotomous Key

  32. Dichotomous Key

  33. Dichotomous Key

  34. A tree that shows evolutionary relationships between different species. Phylogenetic Tree

  35. Phylogenetic Relationship…

  36. King Peter Came Over For Good Soup • King Phyla Class Order Family Genus Species How I remember the order

  37. Classification Practice

  38. Classification Practice

  39. QU: Describe how a phylogenetic tree differs from a dichotomous key. **Ch 15 and 36 Quest Thursday** *Ch Review Due Thursday* • OBJ: Domain Notes and Over Homework Tuesday May 13th 2014

  40. Three Domain System • Archaea Domain • Archaebacteria Kingdom • Bacteria Domain • Eubacteria Kingdom • Eukarya Domain • Protista Kingdom • Fungi Kingdom • Plantae Kingdom • Animalia Kingdom Differences in domains….

  41. Archaea Domain • microscopic organisms • single-celled prokaryotes. • exist under some of the most extreme conditions THE Domains

  42. Bacteria Domain • Prokaryotic organisms THE Domains

  43. Eukarya Domain • Eukaryotic cells • Unicellular (protists) or Multicellular (most Fungi, Plantae, and Animalia) THE Domains

  44. Protista: Usually unicellular, highly specialized • Fungi: Multicellular, cell wall, lack of mobility. • Plantae: Multicellular, cell wall, larger, autotroph • Animalia: Multicelluar, no cell wall, mobile Eukarya Kingdoms…

  45. All Handwritten notes • Food Chains and Webs • Food Webs and Chains Homework • Desktop Esutary • Taxonomy Worksheet: Chapter 15 Section 4 • Dichotomous Key Homework • Chapter 15 Review BINDER CHECK : Ecology

  46. QU: How did you study for this test? *Chapter review in homework bin* • OBJ: Ch 15 & 36 Quest Thursday May 15th 2014

  47. Macroevolutionand Speciation Section 15.1 and 15.2

  48. Darwin – Evolution occurs gradually • Called Gradualism • BUT: Fossil evidence is missing transitions SO…………………. • Punctuated Equilibrium – Evolution can be rapid. • Evolution is in spurts. • Rapid is still 10,000’s of years. Punctuated Equilibrium

  49. Punctuated Equilibrium

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