Bacterial genomes are often under the form a of single, chromosome. bacteria can carry in addition to their own chromosome, which can be parasites or provide useful functionality to their hosts. one can for bacterial phenotypes of interest by designing the culture medium accordingly. wildtype bacteria can grow on medium, and are thus but some mutants need that medium to be supplemented; such mutants, called incorrect answer can always grow on incorrect answer medium. incorrect answer is a mechanism requiring physical contact by which dna can be transferred between bacteria. to act as donors, cells require the incorrect answer factor, which is under plasmid form in incorrect answer f+ cells and integrated in the bacterial chromosome in incorrect answer hfr cells; cells without that factor can act as recipients and are denoted as incorrect answer f-. incorrect answer is a mechanism requiring bacterial viruses, also known as incorrect answer by which dna can be transferred between bacteria. some phages can not only use the incorrect answer cycle, which destroys the host, but can also use the incorrect answer cycle, in which they stay dormant in the bacterial genome.

answer; neuropathic pain;

answerblank(1); ecological; blank(2); evolutionary;

answerdendrites; blank(2) axons;

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.