Evidence of common ancestry

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What does evolution state?
That the wealth of organisms today is the result of diversification (spreading out) of a relatively small number of ancestral organisms.
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What has meant that one organism can have many variants and over time become seperate species?
Natural selection and isolation
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What is one strong piece of evidence that we all evolved from common ancestors?
One strong piece of evidence is that vertebrates are all evolved from a common ancestor with the prevalence of the pentadactyl limb.
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What is the pentadactyl limb?
The pentadactyl limb is a five digit limb that is seen across many animal groups, it's been modified by different groups to perform different functions. e.g. digging, swimming, flying, etc. The layout of the bones remain the same.
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What does homologous mean?
Homologous means the same, a feature that is seen across many groups and remains the same is said to be homologous.
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What is convergent evolution?
Where two totally different organisms evolve to have similar characteristics as a result of adaptation to their environment.
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Card 2

Front

What has meant that one organism can have many variants and over time become seperate species?

Back

Natural selection and isolation

Card 3

Front

What is one strong piece of evidence that we all evolved from common ancestors?

Back

Preview of the front of card 3

Card 4

Front

What is the pentadactyl limb?

Back

Preview of the front of card 4

Card 5

Front

What does homologous mean?

Back

Preview of the front of card 5
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