WORLD POPULATION GROWTH 20.000
Millions of people
10,000
World
5,000
2.000 Asia
1.000
Africa
Europe
500
200
United States,
Mexico Canada, & Greenland
100
Central America,
50 Caribbean Islands, &
South America
20
Oceania (Australia &
nearby Islands in the Pacific)
10
DCOZ
1950
1980
1980
1970
2010
2020
1990
2000
Year
2040
2050
Based on the information in the graph, which region's population is currently
growing the least?
A. Asia
OB. Europe
C. Africa
D. Australia
Hi

In 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? in 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? staphylococcus aureus bacteria that were able to synthesize cell walls using a protein that was not affected by methicillin survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, some bacteria began to synthesize cell walls using a protein that was not affected by methicillin. these bacteria survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, bacterial populations gradually began to synthesize cell walls using a protein that was not affected by methicillin.