CB4A Evidence for human evolution

Question 1

What is evolution

Answer 1

A gradual change in the characteristics of a species over time

Question 2

What is Ardi

Answer 2

Ardipithecus radius or Ardi is the oldest known human ancestor lived 4.4 million years ago. Skull volume 350cm3

Ape features:
Long toes
Long arms

Human features:
Upright

Question 3

What is Lucy

Answer 3

This fossil skeleton dates from 3.2 million years ago. Skull volume 400cm3

Human features:
upright, human-like

Ape features:
small chimp skull.

Question 4

What is Homo Habilis

Answer 4

2.4-2.1 million years old. Quite short with long arms Skull volume 500-600cm3.

Human:
walked upright

Ape like:
Quite short with long arms

Question 5

What is Homo Erectus

Answer 5

1.8 million to 0.5 million years old.Tall species 1.79m and strong build. Skull volume 850cm3

Question 6

What are homo sapiens

Answer 6

Humans 195,000 years ago. 1450cm3 skull volume

Question 7

How has the development of stone tools provided evidence for evolution

Answer 7

Correlation between the development of more complex tools and an increase in brain size

Primitive tools are older than more complex tools. Brain size has increased over time therefore as brain increased more tools made