Dec 09, 2019 · At over 4.5 billion years old and possibly much older, the Earth has been home to millions of unique and beautiful creatures. While it appears that modern humans are a relatively late entry into the marathon of blood-based, karmic rebirth cycles, there is a lot of speculation about when Homo sapiens emerged as the primary, two-legged leaders of Planet Earth.

Major fossil sites of early Homo sapiens. Fossils of the earliest members of our species, archaic Homo sapiens, have all been found in Africa.Fossils of modern Homo sapiens have been found in Africa and in many other sites across much of the world. Sites older than 150k include Florisbad, Omo-Kibish, Ngaloba and Herto. Sites dating to about 100k include Klasies River …

Dec 08, 2022 · The androgen receptor gene is more than 90 kb long and codes for a protein that has 3 major functional domains: the N-terminal domain, DNA-binding domain, and androgen-binding domain. The protein functions as a steroid-hormone activated transcription factor. Upon binding the hormone ligand, the receptor dissociates from accessory proteins, translocates into …

The protein encoded by this gene is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains.

All modern humans are classified into the species Homo sapiens, coined by Carl Linnaeus in his 1735 work Systema Naturae. The generic name "Homo" is a learned 18th-century derivation from Latin homō, which refers to humans of either sex. The word human can refer to all members of the Homo genus, although in common usage it generally just refers to Homo sapiens, the …

Jul 01, 2022 · Evolutionary Tree Information: Both fossil and genetic evidence indicate that Neanderthals and modern humans (Homo sapiens) evolved from a common ancestor between 700,000 and 300,000 years ago.Neanderthals and modern humans belong to the same genus (Homo) and inhabited the same geographic areas in western Asia for 30,000–50,000 years; …

La expansión de la humanidad o, dicho de otro modo, las migraciones humanas prehistóricas e históricas son los procesos por los cuales el ser humano se extiende paulatinamente hasta colonizar todas las regiones habitables de la Tierra.. El primer gran proceso de expansión lo lleva a cabo el hombre primitivo. Tomando en cuenta el origen africano del género Homo, esta …

Homo ergaster is an extinct species or subspecies of archaic humans who lived in Africa in the Early Pleistocene.Whether H. ergaster constitutes a species of its own or should be subsumed into H. erectus is an ongoing and unresolved dispute within palaeoanthropology.Proponents of synonymisation typically designate H. ergaster as "African Homo erectus" or "Homo erectus …

StudyCorgi provides a huge database of free essays on a various topics ????. Find any paper you need: persuasive, argumentative, narrative, and more ????.

One of these groups was Homo erectus, the other group ultimately became our own species Homo sapiens. Some fossils including the ‘type specimen’ (a jaw known as KNM-ER 992) were formerly classified as Homo habilis. ... When and where did our species originate? Our species, Homo sapiens, has now spread to all parts of the world but it's ...