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Mar 21, 2024 · Learn about the structure, function, and composition of the human body, the physical substance of the human organism. Explore the tissues, organs, systems, and biochemical constituents of the body, as well as its development, aging, and diseases.
- The Editors of Encyclopaedia Britannica
- What is the chemical composition of the human body?Chemically, the human body consists mainly of water and organic compounds—i.e., lipids, proteins, carbohydrates, and nucleic acids. The human body...
- What are the four main types of tissue in the human body?The four main types of tissue in the human body are epithelial, muscle, nerve, and connective.
- What are the nine major organ systems in the human body?The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory sy...
Learn the origin, usage, and synonyms of the word human as an adjective and a noun. Find out the meaning of human as a bipedal primate mammal, a person, a disease, a weakness, and more. See examples of human in a sentence and related phrases.
Mar 29, 2024 · Homo sapiens, the species to which all modern human beings belong. Homo sapiens is one of several species grouped into the genus Homo, but it is the only one that is not extinct. See also human evolution.
Apr 8, 2024 · Learn about human beings, the culture-bearing primates classified in the genus Homo, especially the species H. sapiens. Explore their anatomy, evolution, and culture, as well as related topics such as philosophy, anthropology, and medicine.
- The Editors of Encyclopaedia Britannica
Jul 7, 2022 · Explore how early humans evolved various characteristics that define our species today, such as walking upright, making tools, using symbols, and changing the world. Learn about the scientific evidence and the milestones along the way from 6 million years ago to the present.
A human is a member of the species Homo sapiens, which means 'wise man' in Latin. Carolus Linnaeus put humans in the mammalian order of primates . [1] Humans are a species of hominid , and chimpanzees , bonobos , gorillas and orangutans are their closest living relatives.
