1) homologous structures a) A structure that seems to serve no purpose in an organism is called: b) The dog breeds we have today were developed through: c) The strongest evidence for change over a long period of time comes from: d) The image illustrates what evolutionary concept? 2) vestigial a) The dog breeds we have today were developed through: b) The word evolution means c) A structure that seems to serve no purpose in an organism is called: d) Any variation that can help an organism survive in its environment is called a(n): 3) the best explanation for a set of data or observations a) The word evolution means b) In science, theories are: c) The strongest evidence for change over a long period of time comes from: d) Any variation that can help an organism survive in its environment is called a(n): 4) adaptation a) Any variation that can help an organism survive in its environment is called a(n): b) The finches on the Galapagos island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for: c) In science, theories are: d) Book published by Charles Darwin 5) fossils a) The strongest evidence for change over a long period of time comes from: b) In science, theories are: c) Fossils are d) Any variation that can help an organism survive in its environment is called a(n): 6) artificial selection (selective breeding) a) The word evolution means b) The image illustrates what evolutionary concept? c) The dog breeds we have today were developed through: d) A structure that seems to serve no purpose in an organism is called: 7) gathering food a) The finches on the Galapagos island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for: b) The dog breeds we have today were developed through: c) In science, theories are: d) A structure that seems to serve no purpose in an organism is called: 8) change a) A structure that seems to serve no purpose in an organism is called: b) The word evolution means c) In science, theories are: d) The image illustrates what evolutionary concept? 9) Remains of once living organisms that no longer exist a) Book published by Charles Darwin b) Fossils are c) A structure that seems to serve no purpose in an organism is called: d) In science, theories are: 10) The origin of species through natural selection a) The dog breeds we have today were developed through: b) Book published by Charles Darwin c) Fossils are d) Any variation that can help an organism survive in its environment is called a(n):

Evolution challenge

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