A structure that has no use in the organism
Vestigial structures are function less structures that were functioning in an ancestral sprecies. Over time the organism would stop using the structure and then the structure would go away on the outside but it would remain there on the inside.
Like a whale, it has a leg bone but no use for it.
Structures of an organism that once served a function in the organism's ancestors but no longer are used.
Hehe, I was studying this just now.
Useless or nearing useless structures are considered vestigal.
Snake's arms, whale's hipbones and human appendix are good examples.
Which model of evolution shows change over a relatively short period of time
a cell can make mistakes when it copies what in the dna
Nature selects against only harmful traits
Part 1: Evidence from the Fossil Record Part 2: Evidence from Geographic Distribution of Living Species Part 3: Evidence from Homologous Structures and Vestigial Organs Part 4: Evidence from Embryology
Part 1: Evidence from the Fossil RecordPart 2: Evidence from Geographic Distribution of Living SpeciesPart 3: Evidence from Homologous Structures and Vestigial OrgansPart 4: Evidence from Embryologymore: What_are_the_four_pieces_of_evidence_for_evolution
Vestigial StructureA vestigial structure is a structure that appears to no longer have a use in the body.
They don't, vestigial structures are biological structures with no known function that evolved from structures in distant ancestors that used to have a function that is no longer needed.
vestigial
vestigial
a
Vestigial structure is used in application to structures that are determined genetically but do not have the ancestral function.
Vestigial Organs
Tailbones, tonsils, appendix,
vestigial structures.
yeah
Yes you just did
Vestigial organs.