Apart from centrifugation is there any other way of separating a blood sample in its components?

Rank the three variables in terms of how strongly they affect the "species" composition of the bacterial communities. place the variable with the weakest effect on the left and the variable with the strongest effect on the right.

Does masterbation affect height growth or loss of growth hormone?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?