1. BELL RINGER
A student grew a yeast culture on sterilized nutrient medium in a closed dish for 5 days. Each day, she took the same size sample from the dish and placed it on a special slide used for counting microorganisms. She examined the samples under a microscope and drew the following illustrations of her observations over the course of the investigation. Each dot represents 10 yeast cells.
At which point does the population reach the carrying capacity of the culture dish?
Day 3
2. What factors probably limited the growth of the yeast population?
Food and space

2. POPULATION DYNAMICS Objectives:
Compare and contrast exponential and logistic growth.
Relate the reproductive patterns of different populations of organisms to model population growth.

3. PATTERNS OF POPULATION GROWTH
Linear
Growth
Exponential Growth
Logistic
Growth

4. GROUP ACTIVITY