Life on earth B3 A quiz on b3 life on earth containing a range of information you will need for your exam 4.5 / 5 based on 3 ratings ? ScienceThe EarthGCSEAll boards Created by: Ally AntoniouCreated on: 16-06-11 19:08 How many years ago did life begin? 3500 million years ago 1 of 8 What is selective breeding? involved humans deliberately choosing a feature they want to appear in the next generation 2 of 8 What is mutation? a change in a DNA gene 3 of 8 Did Charles Darwin propose the theory of natural selection? True 4 of 8 What is a stimulus? a change in your environment which you may need to react to 5 of 8 Hormones are chemically released into the blood? True 6 of 8 What is Biodiversity? the number and variety of organisms found in an area 7 of 8 Detecting stimuli is the job of your .....? sense organs 8 of 8
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