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Genes and the environment influence human biological variation in visible characteristics, physiology, disease susceptibility, mental abilities, body size, and life span. Though humans vary in many traits, humans are among the least genetically diverse species. Any two humans are at least 99.5% genetically similar.
Following the ancestors of modern human beings into the distant past raises the question of what is meant by the word human. H. sapiens is human by definition, whereas apes are not. But what of the extinct members of the human tribe ( Hominini ), who were clearly not H. sapiens but were nonetheless very much like them?
5 days ago · The human body is the physical substance of the human organism. Characteristic of the vertebrate form, the human body has an internal skeleton with a backbone, and, as with the mammalian form, it has hair and mammary glands.
human body The human body is composed of about 60 percent water. human remains They found some remains which were thought to be human. human suffering Victory in the war was achieved at the cost of great human suffering .
Jul 7, 2024 · Human being, a culture-bearing primate classified in the genus Homo, especially the species H. sapiens. Human beings are anatomically similar and related to the great apes but are distinguished by a more highly developed brain and a resultant capacity for articulate speech and abstract reasoning.
A human is a member of the species Homo sapiens, which means 'wise man' in Latin. [3] 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. Humans are mammals.
Feb 2, 2021 · While most early human finds spark some scholarly debate, few reach the level of the Apidima skull fragment, in southern Greece, which may be more than 200,000 years old and might possibly ...
Jan 3, 2024 · Part of what it means to be human is how we became human. Over a long period of time, as early humans adapted to a changing world, they evolved certain characteristics that help define our species today.
The meaning of HUMAN is of, relating to, or characteristic of humans. How to use human in a sentence.
According to genetic and fossil evidence, older versions of Homo sapiens evolved only in Africa, between 200,000 and 100,000 years ago, with members of one branch leaving Africa by 90,000 years ago and over time replacing earlier human populations such as Neanderthals and Homo erectus .
