Evidence For Human Evolution

Question 1

What is evolution (definition)?

Answer 1

The process by which different kinds of living organisms are believed to have developed from earlier forms during the history of the Earth.

Question 2

How long ago was Ardi alive? How big was their skull?

Answer 2

4.4 million years ago

350 cm3

Question 3

How long ago was Lucy alive? How big was her skull?

Answer 3

3.9-3.0 million years ago

400cm3

Question 4

When was Homo Habilis alive? Who discovered them and when?

Answer 4

2.4-1.4 million years ago

The Leakey’s in the 1960’s

Question 5

When was Homo erectus alive? When were they discovered?

Answer 5

1.8-0.5 million years ago

Discovered in 1984

Question 6

When were Homo Sapiens first alive? What is their skull size?

Answer 6

195 000 years ago to present

1450 cm3

Question 7

When is the wrliset evidnec of humans using stone tools?

Answer 7

3.3 million years ago

Question 8

What were stone tools used for?

Answer 8

Cutting
Hunting
Starting fires

Question 9

What is the relationship between the evolution humans and the tools used by them?

Answer 9

As humans evolved the skull size increased
This meant that humans could understand more complex tools
This is shown as more recent tools seem more complicated than older tools.

Question 10

Are there often gaps in the fossil record?

Answer 10

Yes

Question 11

How do scientists est8mate how old a tool is?

Answer 11

They can work out the different ages of different layers of rocks
Then, they assume the tool is just as old as the layer of rock it is closest to/below/above.