Laika's ppt.homo


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This presentation "homo" shows the history where the human started.<3

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Laika's ppt.homo

  1. 1. HOMOHOMO
  2. 2. ● Homo is the genus of hominids that includes modern humans and species closely related to them. The genus is estimated to be about 2.3 to 2.4 million years old, possibly having evolved from australopithecine ancestors, with the appearance of Homo habilis. ● Several species, including Australopithecus garhi, Australopithecus sediba, Australopithecus africanus, and Australopithecus afarensis, have been proposed as the direct ancestor of the Homo lineage. ● These species have morphological features that align them with Homo, but there is no consensus on which gave rise to Homo, assuming it was not an as-yet undiscovered species.
  3. 3. 1.Australopithecus garhi ➢ Australopithecus garhi is a gracile australopithecine species whose fossils were discovered in 1996 by a research team led by Ethiopian paleontologist Berhane Asfaw and Tim White, an American paleontologist. ➢ The hominin remains are believed to be a human ancestor species and possibly the direct ancestor to the human genus, Homo.
  4. 4. 2.Australopithecus sediba ● is a species of Australopithecus of the early Pleistocene, identified based on fossil remains dated to about 2 million years ago. been dated to between 1.977 and 1.980 million years ago.
  5. 5. 3.Australopithecus africanus ● was an early hominid, an australopithecine, who lived between ~3.03 and 2.04 million years ago in the later Pliocene and early Pleistocene.In common with the older Australopithecus afarensis, Au. africanus was of slender build, or gracile, and was thought to have been a direct ancestor of modern humans.
  6. 6. 4.Australopithecus afarensis ● is an extinct hominid that lived between 3.9 and 2.9 million years ago. A. afarensis was slenderly built, like the younger Australopithecus africanus.
  7. 7. HOMO/LUM O ● HOMO and LUMO are acronyms for highest occupied molecular orbital and lowest unoccupied molecular orbital, respectively. The energy difference between the HOMO and LUMO is termed the HOMO–LUMO gap. HOMO and LUMO are sometimes referred to as frontier orbitals. ● Roughly, the HOMO level is to organic semiconductors what the valence band maximum is to inorganic semiconductors and quantum dots. The same analogy exists between the LUMO level and the conduction band minimum. In organometallic chemistry, the size of the LUMO lobe can help predict where addition to pi ligands will occur.
  8. 8. A SOMO is a singly occupied molecular orbital such as half-filled HOMO of a radical. SOMO
  9. 9. ➢ (Latin: "wise man") is the scientific name for the human species. ➢ Homo is the human genus, which also includes Neanderthals and many other extinct species of hominid; H. sapiens is the only surviving species of the genus Homo. ➢ Modern humans are the subspecies Homo sapiens sapiens, which differentiates them from what has been argued to be their direct ancestor, Homo sapiens idaltu. HOMO SAPIENSHOMO SAPIENS
  10. 10. Homo rudolfensis Where Lived: Eastern Africa (northern Kenya, possibly northern Tanzania and Malawi) When Lived: About 1.9 million to 1.8 million years ago.
  11. 11. Homo erectus Where Lived: Eastern Africa (northern Kenya, possibly northern Tanzania and Malawi) When Lived: About 1.9 million to 1.8 million years ago
  12. 12. Homo habilis Homo habilis (also Australopithecus habilis) is a species of the Hominini tribe, which lived from approximately 2.33 to 1.44 million years ago, during the Gelasian Pleistocene period.
  13. 13. Human Modern humans are the only remaining species of the hominids, a branch of great apes characterized by erect posture and bipedal locomotion; manual dexterity, sociality and tool use; and a general trend toward larger and more complex brains.
  14. 14. Prepared by: LAIKA S. TAMPOS