'48 chromosomes 24 pairs' presentation slideshows

WHAT IS EVOLUTION ?

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Chapter 19

Chapter 19. Evidence of Evolution by Natural Selection. Dodo bird. THINK:. Make a list of all the vestigial structures you can think of. Why do they exist?. Vestigial organs. Modern animals may have structures that serve little or no function

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Evidence of Evolution by Natural Selection

Evidence of Evolution by Natural Selection. Testable Hypotheses. Peppered Moths. Dark vs. light variants. Year % dark % light 1848 5 95 1895 98 2 1995 19 81. B. Kettlewell. Peppered moth. What was the selection factor? early 1800s = pre-industrial England low pollution

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