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pva 7th s6ch

QuestionAnswer
scientists can tell how closely related organisms are by _____________________ comparing their DNA
a dog's genes and protiens would more closely _______________ resemble a wolf
to test your hypothesis about how distantly related two species are, you would ________________________ analzye their DNA
Earth's current era is the __________ era (fill in the blank) Cenzoic
All of the following evidence for evolution in living species: Homologous, analogous, and vestigial structures
________ are the longest periods of time on the geologic scale (fill in the blank) eons
homologous structues indicate that two or more species might share _________________ common ancestors
____________: any variation that makes an organism better suited for its environment (fill in the blank) adaptation
3 positive results of a variation within a population that occur due to natural selection: (completion/ writeout) can live longer, compete better, reproduce more
savengers may aid fossil formation (T/F) CLICK A BLANK
Charles Darwin was an __________ naturalist (T/F) English
the further back in time two species diverged, the less similar they are (T/F) CLICK A BLANK
in rock layers, the oldest rocks are on the bottom (T/F) CLICK A BLANK
Earth's history is divided into 4 eons (T/F) CLICK A BLANK
3 categories of adaptations (completion/writeout) structural- color, shapes, and other physical appearances, functional- internal body systems, behavioral- how an organism behaves or acts
Created by: SHS Sharks
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