Common ancestors and transitional species
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I can explain the importance of transitional species and common ancestors in the fossil record.
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The fossil record includes species that appear to be the common ancestor of numerous later species.
Evolutionary trees can be used to help visualise the relationships between groups of organisms.
The fossil record includes transitional species with features of both evolutionary ancestors and modern species.
A case study of an example of a transitional species (e.g. Archaeopteryx, which links dinosaurs and modern birds).
There are gaps in the fossil record, e.g. ‘missing links’ between evolutionary ancestors and modern species.
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