Darwin's journey helped us all To see how species change He took down notes on what he saw Life never stays the same! His map has lines and forks, you see It looks just like a tree It all comes down to 1 small thing What could the connection be?

Respuesta :

Answer:

common ancestor

Explanation:

If it is a cladogram or phylogenic tree which is what it sounds like your describing, the connection is that all organisms share a common ancestor :)

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