<span>The culture contains 2*10^8 bacteria before it was exposed to ionizing radiation which kills 99.99% of the bacteria. The number of bacteria left after the radiation would be:
final number= initial number * (100%- radiation kill rate)
</span>final number= 2*10^8<span> *(100%-99.99%)
</span>final number= 2*10^8 *(0.01%)
final number= 2*10^8 * 10^-6
final number= 2*10^(8-6)
final number= 2*10^2
Answer:
True
Explanation:
Called selective breeding
Three phases of matter are solid, liquid and gas. They are <span>all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. Gas and liquid flow easily, but solids do not flow. Gas and liquids assume the shape of the container they are held in, but solids retain a fixed volume and shape. </span>
