Answer: 2.35 x 10^6 cfu/ml
Explanation:
Concentration of the original culture: ?
Dilution factor: 10^4
Colony count per plate: 47cfu
Volume of cultured plate: 0.2ml
Concentration of the original culture= <u>Colony count per plate x Dilution factor</u>
Volume of cultured plate
Concentration of the original culture = <u>47 x 10^4 </u>
0.2
Concentration of the original culture = 2.35 x 10^6 cfu/ml
You can further take the log of your answer which would be:
Log(2.35 x 10^6) = 6.371
1. turn off the water when brushing your teeth
2. turn of the lights when leaving a room
3. turn off the lights in the morning and use sunlight coming through the windows to light the rooms
4. turn off the TV when you leave the house
Earth's<span> magnetic field is mostly caused by electric currents in the liquid outer core, which is composed of conductive, molten iron. Loops of currents in the constantly moving, liquid iron create magnetic fields. From afar, the </span>Earth<span> looks </span>like<span> a big </span>magnet<span> with a north and south pole </span>like<span> any other</span>magnet<span>.</span>