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What did Darwin infer from his observations of organisms in South America and the Galapagos Islands?
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
Which term refers to similar structures that related species have inherited from a common ancestor?
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
A branching tree is
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
If two organisms look very similar during their early stages, this is evidence that the orgasnisms
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
A trait that helps an organism survive and reproduce is called a(n):
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
A species is a group of similar organisms that
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
How does natural selection lead to evolution?
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
Which term refers to a species that no longer has any living members?
adaptation.
Environmental changes kill weaker members of the species.
A small number of different plant and animal species had come to the Galapagos Islands.
can mate with one another and produce fertile offspring.
extinct
evolved from a common ancestor.
homologous structures
a diagram showing how scientists think different groups of organisms are related.
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