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classification test
7th grade classification test
| Question | Answer |
|---|---|
| science of naming & classifying organisms | taxonomy |
| when taxonomists group species that share common ancestros closer together | biological relationship |
| involves classification that allows one to organize a large amount of information so it is easy to find and understand | good system |
| is one of the sequences that DNA is composed of-also thymine, guanine, and cytosine | Adinine |
| allows taxonomists to organize a lot of data so it is easy to find and understand | classification benefits |
| is how scientists know about extinct species and is based on how animals have changed in the past | fossil record |
| helps taxonomists show relationship "genetically" among organisms that are not obvious by just observing physical traits | molecular evidence |
| is important evidence to see how species adapted to certain environmental conditions | habitat variations |
| is criteria such as physical evidence, habitats, biological reltionships, and DNA | physical traits |
| allows people speaking different languages to refer to all organisms the same way | universal naming |
| use geological relationships to classify minterals by physical observation, optical methods, and x-ray diffraction | geological |
| found in the upper most recent layers of EEarth are the most recent in age. The one found in the lower layers of Earth are the oldest | fossils |
| is the Greek word meaning "arrangement" | Taxis |
| process of arranging organisms into groups based on similarities | classification |
| determined the molecular structure of the DNA molecule and made a model of the double helix | Francis Crick |
| help scientists make comparisons about two or more organisms and their characteristics | percents |
| scientists look at this to compare the genes of an organism | DNA |