Somebody help with this biology question please The mean concentration of red blood cells in an adult is 5.5 x 10^{6}
cells per mm^3
1 mm^3 = 0.000001 dm^3
Calculate the mean number of red blood cells in 1 dm^3
Give your answer in standard form.

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations