Term | Definition |
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 |