Answer:
B. A human buying a carton of eggs
Explanation:
- rock salt and gypsum: evaporation- dolostone: chemical replacement- chert and iron-rich formations: precipitation
Answer:
I beleive that the answer is C, Not quite sure.
Explanation:
To generate
electricity .
Answer:
22 cells
Explanation:
The concentration of numbers of cells = 6.74 x 10⁶ cells/ml
Dilution stages includes = 1:100 ; 1:100 & 1:3
The consecutive dilution stages can be calculated as:
= (6.74 x 10⁶) × (1/100)(1/100)(1/3)
= 222.42 cells/ml
= 2.22 × 10² cells/ml
So after addition 0.1 ml of the final dilution to a spread plate, the number of CFUs ( Colony forming units) we expect to count will be:
= (2.22 × 10² cells/ml)(0.1 ml)
= 22.2 cells
≅ 22 cells.
