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Human Evolution
Huuman evolution key words
32
Biology
12th Grade
11/11/2013

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Term
Acheulian
Definition
Tool culture of Homo Erectus and archaic Homo Sapiens. Tear-dropped shaped tools used as hand axes and choppers
Term
Ape
Definition
No tail, large brain, brachiating knuckle walkers
Term
Australopithecus
Definition
Group of extinct omnivorous bipedal hominins
Term
Biological Evolution
Definition
Evolution of bone, muscle, physiology and inherited behaviour
Term
Bipedalism
Definition
Walking on two legs. Only the Austalopithecus, Paranthropus and Homo geunus's
Term
Brachiating
Definition
Swinging by arms as apes do
Term
Broca's Area
Definition
Area of brain that produces speech
Term
Brow Ridge
Definition
Bony projection protecting eyes. Prominent in early hominins
Term
Condyle
Definition
Buttress of bone on the base of the femur. Humans have this on the outer base and other apes on the inner base. It prevents collapse of the knee inwards
Term
Cranium
Definition
Raised back of skull that holds the brain
Term
Cultural Evolution
Definition
Evolution of culture, weapons, art, music, rituals etc
Term
Diastema
Definition
Gap between incisors and canines to allow for space for the large canines
Term
Dog
Definition
First animal to be domesticated
Term
Foremen Magnum
Definition
Opening in the skull for attachment of the spinal cord
Term
Grains, Nuts and Fruits
Definition
First crops to be grown
Term
Hominid
Definition
Family that includes apes and humans
Term
Homo Erectus
Definition
First to build huts for shelter, use primitive speech and first to use and maintain a fire from a natural source which they used to cook food, exploit new habitats, avoid predators and provide light
Term
Homo Neanderthalensis
Definition
Cared for the injured and old. Buried dead and wore clothing
Term
Homo Sapiens
Definition
Used upper Palaeolithic tools. Produced art forms and had spiritual awareness
Term
Mousterian
Definition
Tool culture of Neanderthals and early Homo Sapiens. More sophisticated and finely worked scrapers, spear tips and axe heads. Edges re-shaped and attached to other materials. Requires skill to make and techniques taught and learned.
Term
Multiregioal Hypothesis
Definition
Dispersal hypothesis that states that populations largely evolved isolated, with some interbreeding, so evolved in parallel to become the species we are today with different regional races
Term
Nuchal Crest
Definition
Attachment at the back of the skull for attachment of neck muscles
Term
Olduwan
Definition
Tool culture of the Homo Habilis. Pebbles with flakes knocked off one side
Term
Replacement Hypothesis/Out-Of-Africa
Definition
Dispersal hypothesis that states that modern is evolved from african populations which left Africa about 200,000 years ago, as they moved out of Africa they replaced regional populations of Homo Erectus as they went. This is supported by mtDNA
Term
Sagittal Crest
Definition
Bony projection on top of the cranium for attachment of chewing muscles
Term
Selection Pressures
Definition
The enviromental factors that favour certain phenotypes over others
Term
Sexual dimorphism
Definition
Where the male is larger and has structual differences from the female
Term
Thermoregulation
Definition
The ability of the body to keep cool
Term
Upper Palaeolithic
Definition
Tools used by Homo Neanderthalensis and Homo Sapiens. Tools much more refined and large variety of specialised tools with range of uses shuch as spears, arrow heads and scrapers. Made from bone or wood
Term
Valgus Angle
Definition
Carrying angle. The angle between the femur and the tibia
Term
Wernicke's Area
Definition
Area in the brain concerned with recognition of speech
Term
Zygomatic Arch
Definition
Bone structure on side of cheek through which the chewing muscles go
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