7. Patterns of Dispersal

Concept 10: Multiregional Theory

Success Criteria

Vocabulary

Energy

Joule

Transformation

Key ideas:

Supporting evidence:


An unpopular theory because:

High levels of gene flow would be needed for this hypothesis to be correct, which is not very likely. 

Highly questionable based on the more recent genetic research, especially the use of mtDNA and Y chromosome DNA. 

For this hypothesis to be correct, current humans would have to have large genetic variation. However, when mtDNA (mitochondrial DNA) and Y chromosome DNA is analysed, there was less variation than expected. This means they didn't leave Africa until much later. 

Concept 11: Out of Africa Model

Success Criteria

Vocabulary

Energy

Joule

Transformation

Key ideas:

Supporting evidence:

Also, the Multiregional theory would require gene flow across continents during the last million years, which would be unlikely due to vast distances. 

C10 + 11 Task 1: Choose one of the resources to read.

Resource 1: Grass Level (easy level text)

3.6 10: Human Origin and Dispersal (Grass Level)

Resource 2: Sky Level (medium level text)

3.6 10 and 11: Patterns of Dispersal of Hominins (Sky Level)

Resource 3: Sun Level (harder level text)

3.6 10 and 11: Dispersal Theories (Sun Level)

Resource 4: Cosmic Level (hard level text)

3.6 C10 and 11: The Origin and Spread of H. Sapiens

C10 + 11 Task 1: Choose to do any of these activities.

Activity 1: SciPAD pages 292-296.

Activity 2: Reading and questions.

C3, C10 & C11: Climate Change and Dispersal

Activity 3: Attempt 2018 Exam Q3. Get the paper cut outs from me.

C10 & C11: Hominin Dispersal (2018 Exam)