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1 today scientist have identified at least how many kinds of organisms on Earth 1.7 million
2 the process of grouping things based on their similarities classification
3 scientific study of how living things are classified Taxonomy
4 first scientist to develop a classification system for organisms was the greek scholar Aristole
5 he recorded each animal's appearance ,behavior,and movement
6 Aristotle divided animals into three groups those that fly ,those that swim,and those that walk,crawl,or run
7 why isn't Aristotle's system used a lot today even though organisms in a group moved in a similar way,they were different in many other ways
8 Linnaeus's naming system each organism is given a two-part name Binomial nonmenclature
9 why is Taxonomy useful to scientist once an organism is classified scientist know a lot about that organism
10 series of paired statements that describe the physical characteristics of different organisms Dichotomous Key (Taxonomic key)
11 first part of an organism's scientific name classification grouping that contains similar,closely related organisms Genus
12 a group of similar organisms that can mate and produce fertile offspring in nature name often describes a distinctive feature species
13 organisms that are classified in the genus ______ share features such as sharp,retractable claws and behaviors such as hunting Felis
14 together,a genus and a species name identify _________ one kind of organism
15 why is binomial nomenclature helpful to scientist it makes it easy for scientists to communicate about an organism because everyone uses the same name for the same organism
16 scientist understand that certain organisms are similar because they share a _____________ common ancestor
17 a _________ is the broadest level of organiztion kingdom
18 the most broadest level when using the 8 levels of classification domain
19 the second level when using the 8 levels classification kingdom
20 the third level when using the 8 levels of classification phylum
21 the forth level when using the 8 levels of classification class
22 the fifth level when using the 8 levels of classication order
23 the sixth level when using the 8 levels of classification family
24 the seventh level when using the 8 levels of classifcation genus
25 the eight level when using the 8 levels of classification species
26 organisms at lower levels _____________________________________. share more characteristics with each other
27 by working through the statements in the key in order,the person can eventually _______________. identify the organism
Created by: mickpick0710