1. September 17, 2013 Pre- AP Correct Who’s Who? Yeast Lab

2. Freshwater Food Web

3. September 17, 2013 Periods 3 & 4 Make sure you have copied the Freshwater Food Web into your journal. Using the food web, complete the Who’s Who sheet to turn in for a grade!! Copy 4 Defintions Game

4. September 17 2013 Period 5 Copy the Organisms Graphic Organizer on the Board In groups of 3-4 organize the Freshwater Organism cards into a food web. In your journal draw the food web using arrows and the names of the organisms only. Complete the Who’s Who Sheet to turn in for a grade!

5. September 17, 2013 Period 7 Copy the Graphic Organizer on the Board Study the Freshwater Food Web into your journal. Complete the Who’s Who? Sheet to turn in for a grade. Limiting Factors If time permits: Limiting Factors Game

6. BIOTIC Living resources or components of an ecosystem

7. ABIOTIC Non –Living Resources or Components of an Ecosystem Examples: Water, light, temperature, air, soil, rocks and wind

8. LIMITING FACTOR Those biotic and abiotic factors that limit the size of a population

9. COMPETITION All living things compete for – Food – Space Competition limits population growth

10. CARRYING CAPACITY The total number of organisms supported in a habitat

11. September 18, 2013 Pre-AP In your journal, write a short summary of how food, water and land (shelter) are important components of a habitat. Glue in the graph information. You will be assigned a number for a short game we will play. You will graph the data from the game.

12. September 18, 2013 On your desk is a ½ piece of paper with some of the factors that were presented in the game played yesterday. Decide if the factor limited population growth or allowed population growth. (Did you have to go backward or forward?) Then decide if the factor was biotic or abiotic. Check the correct boxes.

13. Limiting Factor YEAST LAB 10 cc Yeast 10 cc Sugar 50 mL Water at 40-50 degrees C Spoon Cup Paper Towel

14. Procedure 1.One person will get supplies 2.Set down paper towel on your desk. Place the yellow cup on top. 3.Observe the sugar, then pour into the cup. 4.Observe the yeast, then pour into cup. Stir. 5.Are there any changes? 6.Pour the water into the cup and stir gently. 7.Set the cup aside and wait.

15. YEAST Single Celled Eukaryotic Fungi Used to expand in cooking

16. ASEXUAL REPRODUCTION Parent Cell Budding Identical / Uniform Offspring No Survival Advantage

17. ABIOTIC FACTORS Temperature Space

18. POST LAB QUESTIONS – answer on handout 1. What kind of change occurred when mixing the sugar and yeast? 2. What abiotic factors affected the yeast? 3. What kind of change occurred after adding water? 4. Will the yeast continue to reproduce forever? Why or Why Not? 5. What is an example where two different species might compete for resources? 6. What did you learn about how yeast depends on and may compete for abiotic resources?