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25 questions
Which of the following is the collection of life's remains found in sedimentary rock?
natural selection
homologous structures
Charles Darwin
the fossil record
Similar structures with different purposes found in different species are known as _____
vestigial structures
DNA
homologous structures
the fossil record
The picture shows a/an ___________
homologous structure
vestigial structure
What is this an example of?
Homologous structure
Analogous structure
Vestigial organs
Functional adaption
The appendix, which is not needed to survive, is conisdered to be a
Homologous Structure
Analagous Structure
Vestigial Structure
Homology
Similarities in bone arrangements, like those in the picture, support the hypothesis that...
these organisms are not well adapted
these organisms share a common ancestor
these organisms all share the same DNA sequences
these organisms are members of the same species
Vestigial structures
structures that perform a similar function but are not similar in origin
remnants of once-important structures that have slowly lost all or most of their function
features found in different organisms that share structural similarities but may have very different functions
preserved remains of an organism
What best describes the hind leg bones seen in the whale?
The bones are analogous structures to the fins of living fish.
The bones are vestigial structures that had a function in an ancestor.
The bones are homologous structures to the wings of butterflies.
The bones are fossil structures from an extinct ancestor.
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