Interesting biology ? Know the secrets of biology.

Biology deals with the study of the many varieties of living organisms. Clockwise from top left: Salmonella typhimurium(a type of bacteria), Phascolarctos cinereus(koala), Athyrium filix-femina(common lady-fern), Amanita muscaria(fly agaric, a toxic toadstool), Agalychnis callidryas(red-eyed tree frog) and Brachypelma smithi(Mexican Red-kneed Tarantula) Biologyis a natural scienceconcerned with the study of lifeand living organisms, including their structure, function, growth, evolution, distribution, and taxonomy. [ 1 ]Modern biology is a vast and eclectic field, composed of many branches and subdisciplines. However, despite the broad scope of biology, there are certain general and unifying concepts within it that govern all study and research, consolidating it into single, coherent fields. In general, biology recognizes the cellas the basic unit of life, genesas the basic unit of heredity, and evolutionas the engine that propels the synthesis and creation of new species. It is also understood today that all organisms survive by consuming and transforming energyand by regulatingtheir internal environment to maintain a stable and vital condition. Subdisciplines of biology are defined by the scale at which organisms are studied, the kinds of organisms studied, and the methods used to study them: Biochemistryexamines the rudimentary chemistry of life; molecular biologystudies the complex interactions among biological molecules; botanystudies the biology of plants; cellular biologyexamines the basic building-block of all life, the cell; physiologyexamines the physical and chemical functions of tissues, organs, and organ systemsof an organism; evolutionary biologyexamines the processesthat produced the diversity of life; and ecologyexamines how organisms interact in their environment.