Which one of the following is not a refinery process ? a) reduction
b) cracking
c) reforming
d) fractionation

The concept of empiricism states that all rationally accepted knowledge is determined from experience. francis bacon was one of the first scientists to promote this theory. what was it’s impact on society?

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division