Bacteria multiply by division. one bacterium becomes two. then two divide into four, the four divide into eight, and so on. for a certain strain of bacteria, the time for this division process is one minute. if you put one bacterium in a bottle at 11: 00 p. m., by midnight the entire bottle will be full.
1. at what time will the bottle be half full? t realize that 2. suppose you could be a bacterium in this bottle. at what tim you were running out of space? explain your response.

d. changes in climate and historical records

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the right is separation by density .

take the blood which is a good example of a heterogeneous mixture.

blood is a vital liquid in our body, which transports oxygen from the air to our lungs so we can breathe. it is also used to eject wastes, such as carbon dioxide, to bring cells and molecules of the immune system to the tissues, and to spread hormones throughout the body. it corresponds to plasma, red blood cells, white blood cells, platelets and hemoglobins combined.

in medical tests centrifugal force is used to separate the different components of the blood.

in general, the centrifugation will allow to separate and analyze the different components of the blood, to know if the rate of white blood cells in the blood of a patient, for example, is normal, and therefore to know if his system immune is integrity.

under the action of centrifugal force, the solid components in the blood are drawn to the bottom of the tube in which the blood is contained. the centrifugal force then acts as an accelerated settling. it separates plasma from red blood cells and white blood cells.