Too Many to Count 3. How might scientists have
calculated these data?
Type your answer here.
Total Number of Bacteria in Soil and Aquatic Habitats
Habitat
Habitat Size Number of Bacteria (in billions)
Ocean:
203,000,000
101,500,000,000,000
Continental Shelf billion liters
Open Ocean:
72,000,000,000
billion liters
36,000,000,000,000,000
Freshwater Lakes
125,000,000
billion liters
130,000,000,000,000
Tropical
rain forest soil
17 million km?
1,000,000,000,000,000
Tundra and
alpine soil
8 million km?
20,800,000,000,000,000
upper 200m