Books relating to Biology are located within the QH call number range and are located on the 6th floor.
QH BIOLOGY
359 - 425 Evolution
426 - 470 Genetics
471 - 489 Reproduction
501 - 539 Life
Other relevant areas include:
QK (Botany)
QL (Zoology)
QM (Human Anatomy)
QP (Physiology)
QR (Microbiology)