Biology

Biology (also referred to as the biological sciences) is the science of life. It is the scientific study of the structure, function, growth, origin, evolution, and distribution of organisms. From a ToK perspective, organisms are objects behaving at the second dimension of complexity.

Four unifying principles form the foundation of modern biology:

There are a large number of biological science disciplines. A few of the more prominent include botany (the study of plants); zoology (study of animals); microbiology (microorganisms); cytology (study of cellular function); evolutionary biology (mechanisms and processes of evolution); physiology (the physical and chemical functions of the tissues and organ systems); and ecology (how organisms and their environment interrelate).