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Other evidence suggests that life may have originated inside the continental crust or in water at Earth's surface. Earth remains the only place in the universe known to harbor life. Geochemical and fossil evidence from the Earth informs most studies of abiogenesis.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Life is a quality that distinguishes matter that has biological processes, such as signaling and self-sustaining processes, from matter that does not. It is defined descriptively by the capacity for homeostasis, organisation, metabolism, growth, adaptation, response to stimuli, and reproduction.
A medical condition is a broad term that includes all diseases and disorders. A disease is an abnormal condition affecting the body of an organism. A disorder is a functional abnormality or disturbance. Lists of animal diseases; List of autoimmune diseases; List of cancer types; List of childhood diseases and disorders; List of endocrine diseases
A life form (also spelled life-form or lifeform) is an entity that is living, [1] [2] such as plants , animals , and fungi . It is estimated that more than 99% of all species that ever existed on Earth, amounting to over five billion species, [3] are extinct. [4] [5] Earth is the only celestial body known to harbor life forms. No form of ...
Lifestyle diseases can be defined as the diseases linked to the manner in which a person lives their life. These diseases are non-communicable , and can be caused by lack of physical activity , unhealthy eating , alcohol , substance use disorders and smoking tobacco , which can lead to heart disease , stroke , obesity , type II diabetes and ...
Other normal temperature variations include those related to the menstrual cycle. [ 20 ] [ 21 ] The temperature regulator's set point is reset during infections to produce a fever. [ 18 ] [ 22 ] [ 23 ] Organisms are capable of adjusting somewhat to varied conditions such as temperature changes or oxygen levels at altitude, by a process of ...
Human biology is an interdisciplinary area of academic study that examines humans through the influences and interplay of many diverse fields such as genetics, evolution, physiology, anatomy, epidemiology, anthropology, ecology, nutrition, population genetics, and sociocultural influences.