As a physicist I have to tell you that this is one of the most ignorant statements I have seen around here. Biology is certainly a science, but much cannot be measured and little can be predicted. Much of the most exciting work in chemistry is too complex for mathematical prediction.
Which is the reason why physics is more scientific than either biology or chemistry.
I don't know about that. As a biochemist, I measure things all the time, and I seem to recall making all kinds of measurements throughout my biology classes. True, most life scientists don't engage in the heavy calculus like physicists do--for some reason, most of the biological functions that I am familiar can be nicely analyzed with logarithmic equations. But we certainly use the math and make predictions (otherwise, how could we do hypothesis-driven research?).
If it can't be expressed in figures, it is not science; it is opinion. Doth saith Robert Heinlein