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Biology

Biology
Charles Darwin wrote The Origin of Species after his voyage on the HMS Beagle, painted here by Conrad Martens.

Biology is the study of life. At its broadest definition, biology covers the study of plant life, animal life, microbial life, and how these different lifeforms interact with each other and the systems around them. 

Cells

Cells are the basic building blocks of complex organisms. 

Genetics & Evolution