OCSC- Theory depth: Books
05/09/2018
Here is a subject wise list of books that you can refer to to gain in-depth biology. They are fantastically designed and I am sure you will love every single one of them.
GENERAL BIOLOGY
CELL BIOLOGY
BIOCHEMISTRY
GENETICS
EVOLUTION, SYSTEMATICS, CLADISTICS
PLANT PHYSIOLOGY, MORPHOLOGY, ANATOMY
ANIMAL PHYSIOLOGY
ECOLOGY
ANIMAL BEHAVIOUR
Most of the pdfs are available for free.