Human Evolution

Question 1

What are some traits we share with primates?

Answer 1

Upright posture, Long upper arms, reduced sense of smell, large brain/skull compared to body mass

Question 2

List 4 differences between homo sapiens and other primates

Answer 2

cranium size, brow ridges, smaller canines, protruding/not protruding jaws

Question 3

What is the dental formula for humans?

Answer 3

2.1.2.3/2.1.2.3

Question 4

What is Prognathism?

Answer 4

When the nose of snout protrudes to the front

Question 5

What are some advancements that the genus Home has over Australopithecus?

Answer 5

-a larger brain= developement of languages, tools and control of fire
- human-like skull= teeth are smaller (change in diet)

Question 6

What are some charateristics of the Homo sapiens sapiens?

Answer 6

-increased frontal-lobe development
-smaller teeth
-advanced social behavior
-not usocial organisms
-slender build

Question 7

What are some advantages of being Bipedal for human development?

Answer 7

-better view of surroundings
-more sufficient movements
-reduced exposure of body to sun
-hands are free
-faster cooling of body
-display of male sex organs

Question 8

What do paleontologists look for when classifying a fossil?

Answer 8

-position of the foramen magnum
-spine shape
-pelvis width
-if the thigh bone is angled
-if big toe is aligned

Question 9

What is hominin?

Answer 9

a classification term when talking about human evolution that excludes apes

Question 10

List the order of the Australopithecus’?

Answer 10

1. Australopithecus afarensis
2. Australopithecus africanus
3. Australopithecus sediba

Question 11

What was the name/s of the fossils found of the A. afarensis and where were they found?

Answer 11

Lucy (Ethiopia), Laetoli footprints (Tanzania)

Question 12

How many organisms were found as the ‘Laetoli footprints’ and how could it be said that they were Bipedal?

Answer 12

2 adults and a child, they had arches in their feet

Question 13

What was the fossil evidenc3e for the Australopithecus africanus?

Answer 13

the ‘Taung child’ found in North west and ‘Mrs Ples’ found in the sterkfontein caves, ‘little foot’ found in the sterkfontein caves

Question 14

What was fossil evidence for Austalopithecus sediba?

Answer 14

‘Karabo’ found in Malapa in the cradle of humankind

Question 15

What type of fossil is A. sediba?

Answer 15

Transitional fossil

Question 16

What are some difference between A. and H.

Answer 16

-Flatter face
- smaller teeth
- significantly bigger brain meaning better diet

Question 17

What is the home Habilis reffered to as?

Answer 17

Handy man

Question 18

What are the characteristics of the H. eruectus.

Answer 18

75% brain power of us
Omnivor
Controlled fires
Used tools
Tall as humans
Turkana boy

Question 19

What are characteristics of H. neanderthalensis and where they lived

Answer 19

Europe and West asia
Large Brain and small frontal lobe
Hunted small mammels

Question 20

Homo sapiens characteristics

Answer 20

They where hunters and gatherers

Question 21

what is the nickname for homo sapien sapiens and name 6 characteristics

Answer 21

Symbol users
originated in africa
More slender build
Large brain and increased frontal lobe
Developed brain
Smaller face and teeth and nose
Prominant chin
Language complex tools and socialism

Question 22

name differences between the multiregional modal and the out of Africa model

Answer 22

Multi regional model states that H. erectus migrated to different parts of the world and Adapted in those different regions
Out of africa model states that The more advanced Homo Sapiens developed in africa the migrated out into different areas and then evolved there