# Assume that you live in a country with 85 million people that consistently experiences an annual growth rate of 4.2%. If this population continues to grow at the same rate for the next 5 years, how many people will live in the country (round to the nearest whole number).

Assume that you live in a country with 85 million people that consistently experiences an annual growth rate of 4.2%. If this population continues to grow at the same rate for the next 5 years, how many people will live in the country (round to the nearest whole number).

Natural Selection

Procedure
1. Remove the two sheets of paper marked Blue Habitat (Figure 5) and Red Habitat (Figure 6), from your manual (found at the end of this procedure).

2. Place 50 red and 50 blue beads into a 100 mL beaker.

3. Mix them well and pour them onto the sheet marked Red Habitat.

4. Keep the beads that fall onto habitat that matches their color.

6. Repeat this three times.
7. Record the remaining colors.
Blue _____________ Red _____________

Do you observe a selective advantage for the red or blue beads? Why?

8. Repeat the process using the Blue Habitat with the remaining beads.
Blue _____________ Red _____________

Post-Lab Questions
1. How did the distribution of phenotypes change over time?

2. Is there a selective advantage or disadvantage for the red and/or blue phenotypes?

3. What phenotypic results would you predict if starting with the following population sizes?
A. 1000:
B. 100:
C. 10:

4. Assume that you live in a country with 85 million people that consistently experiences an annual growth rate of 4.2%. If this population continues to grow at the same rate for the next 5 years, how many people will live in the country (round to the nearest whole number).

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