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Evidence for Evolu

Evidence for evolution

QuestionAnswer
list 3 steps involved in the creation of a fossil from a recently deceased organism? 1.Must die and be buried 2.undisturbed for thousands of years 3.Then exposed later
What amounts of the total number of organisms that have ever lived on Earth are preserved in the fossil record? They have made wrong hypothesis many times
What particular locations would be most likely to produce future fossils? wet lowlands, slow-moving streams, lakes, shallow sea, Near volcano's
Intermediate form Organisms that bride the gap between different major groups
Vestigial structures Structures that is reduced in size and function
Homologous Structures Structures that are the same indifferent species
Do scientist still use the term "missing link" why no? No, because it implies that there is one of the individual between 2 major groups
Name 3 pairs of organisms for which there exists clear intermediate forms in the fossil record? 1.Fish & amphibians 2.Reptiles & birds 3.Reptiles & mammals
The ancestor of the modern whale was land creature that lived approximately how long ago? Pakicetus, 4million years ago
What structure features of the modern whale makes scientist think that their ancestors once lived on land? They had hipbones
Which is better indicator of evolutionary relationship: structure or function? Structure
What regulates the early stages of an organism's embryonic development, causing some very different organisms to have similar structures Tale, Lim-bud
Name 3 structures common to all vertebrates during early development 1.Change in traits over time 2.Fewer differences in Amino Acids 3.Species that are not closely related
Would 2 organisms with very similar DNA be more or less closely related to one another? Humans & Chimpanzees
Created by: mhackett
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