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7thgrade Chapter6 Adaptation Part 2

AB
Most fossils are found inSEDEMENTARY ROCK
(Because most organism do not become fossils) Fossil records areINCOMPLETE (can't tell us about every organism that ever lived)
Characteristics that a person develops or aquires during their life such as muscles from working out are calledAQUIRED CHARACTERISTICS
Structures that are the similiar (same) in function (job) and structure (form and shape) are calledHOMOLOGOUS STRUCTURES
A structure such as the appendix that serves no purpose anymore is called aVESTIGIAL STRUCTURE
The study of embryos and their development is calledEMBRYOLOGY
Embryology shows that fish and human embryos both have tails. This shows they had common....ANCESTORS, GIVING EVIDENCE FOR EVOLUTION.
Bat wings and human arms are similiar in structure and function (homologous). ThisSUGGESTS THEY HAD COMMON ANCESTERS, GIVING EVIDENCE FOR EVOLUTION.


MS, CCC-SLP

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