6.3 The development of understanding of genetics and evolution

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Question 1
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The timeline below shows when Neanderthals (Homo neanderthalensis) existed and when modern humans (Homo sapiens) existed.

A timeline graph showing the existence periods of Neanderthals and modern humans. The horizontal axis is labeled 'Thousands of years ago' and goes from 500 on the left to 0 (labeled 'Present day') on the right. There are major grid lines at intervals of 100 thousand years (500, 400, 300, 200, 100, 0), with 10 small grid subdivisions between each major division, so each small grid square represents 10 thousand years. Neanderthals are represented by a horizontal bar starting at 400 thousand years ago and ending exactly 4 small grid squares to the left of 0 (which corresponds to 40 thousand years ago). Modern humans are represented by a horizontal bar starting at 300 thousand years ago and ending at 0 (the present day).

a.

How many thousand years ago did Neanderthals become extinct?

[2]
b.

Determine the time in years when both Neanderthals and modern humans coexisted.

[2]

6.3 The development of understanding of genetics and evolution Questions

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