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Seats : period 1

Seats : period 1. Seats : period 5. Catalyst. 4 minutes!. 100. B. 1 : Raise a hand 1: Demonstrate North Star traits Problem solver Goal driven 3 : 100% seated before the bell 3: “Ready for your attention” 3 : Lab / activity clean up 5: 100% on task during practice

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Seats : period 1

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  1. Seats: period1

  2. Seats: period 5

  3. Catalyst 4 minutes!

  4. 100.B • 1: Raise a hand • 1: Demonstrate North Star traits • Problem solver • Goal driven • 3: 100% seated before the bell • 3: “Ready for your attention” • 3: Lab / activity clean up • 5: 100% on task during practice • 5: 80% exit ticket average Headphones on Friday!

  5. 100.B love it or hate it! hot seat ! head phones ! hot seat ! music ! hot seat ! head phones ! head phones ! head phones !

  6. unit 7: ecology

  7. Objectives • Agenda • Catalyst 5 • Limiting Factors DD vs. DI 10 • Independent Practice 5 • Limiting Factors Graph 25 • Exit Ticket 5 • We are learning to… • explain how birth, death, immigration, and emigration influence population size • We will be successful when we can… • explain how populations grow using both exponential and logistic growth patterns science genius!

  8. Test Score WARS Period 1 77% Period 5 84% corrections due FRIDAY! Andre ! Melody!

  9. What Limits PopulationGrowth?

  10. DD or DI? a. Rainbow smelt and yellow perch attempt to occupy the same area. The more aggressive smelt survive; the perch do not. DD - competition between species only occurs at certain densities

  11. DD or DI? b. A severe flood brings a lot of sediment and silt into Lake Winnipeg. The turbidity of the lake increases greatly. DI - natural disasters affect all populations regardless of density

  12. DD or DI? c. A drought decreases the water level in Lake Winnipeg. The carrying capacity of the lake decreases. DI - natural disasters affect all populations regardless of density

  13. DD or DI? d. Due to the introduction of rainbow smelt, Lake Winnipeg becomes crowded and some fish species do not survive. DD - crowding only occurs at certain densities

  14. DD or DI? e. Since northern pike prey on yellow perch, an increase in the perch population causes an increase in the pike population. DD - predation only occurs at certain densities

  15. DD or DI? f. Many fish die due to an increase in water temperature. DI - temperature affects all population densities

  16. DD or DI? g. Due to over-fishing, the number of walleye in Lake Winnipeg decreases. DI - human activities affect all population densities

  17. DD or DI? h. A population is growing quickly when parasites cause disease to spread quickly. DD - parasitism only affects certain population densities

  18. DD or DI? i. Since lake sturgeon migrate long distances to spawn, many do not survive the trip. DI - behaviors of organisms affect all population densities

  19. Turn it in  homework due YESTERDAY!

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