Human evolution

primates
1. an order of animals with grasping hands, nails, rather than claws or forward facing eyes
hominidae
1. the family to which humans and the extinct genus australopithecus belong
australopithecis
1. a genus in the family hominidae that probably ancestral to the genus homo
phylogenetic tree
1. a branching diagram that depicts the evolutionary relationships of organisms
out of africa
1. a model proposing that a common ancestor of all modern humans evolved in africa and then migrated out to colonise the whole earth
  1. ancestors evolved between 200 000 and 100 000 years ago
  2. a small sub group left africa, around 60 000 years ago to colonise the earth
  3. colonised the entire earth by about 15 000 years ago
mitchondrial DNA
1. DNA contained within the cell mitochondria and passed from mother to sons and daughters
humans
1. class
  1. mammalia
2. order
  1. primates
3. family
  1. hominidae
4. genus
  1. homo
evolutionary changes in hominids
1. the face becomes flatter , more vertical
2. the lower jaw shortens and does not project out as far
3. a chin develops
4. the forehead becomes more vertical
5. the craniam enlarges and becomes more rounded
6. cranial capacity increases

Resumo de Recurso

	Criado por Noor Haider mais de 5 anos atrás