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CLASSIFICATION Things you already know: What is a species? Why are dogs and cats in different species? Group Activity: paper and pencil –Go to your lab.

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Presentation on theme: "CLASSIFICATION Things you already know: What is a species? Why are dogs and cats in different species? Group Activity: paper and pencil –Go to your lab."— Presentation transcript:

1 CLASSIFICATION Things you already know: What is a species? Why are dogs and cats in different species? Group Activity: paper and pencil –Go to your lab group. –Take off one of your shoes. –Group shoes according to characteristics. ex. athletic, dress

2 CLASSIFICATION SHOES Athletic DressCasual Every shoe should be described individually with the person’s name it belongs to. How do you classify shoes?

3 SHOE CLASSIFICATION How did you first classify the shoes? As the groups got smaller, did the divisions change? What are some other things that are categorized or organized into classes or groups? ex. grocery stores

4 How Are Living Things Classified? They are put into ever more exclusive groups 1.By appearance 2.By biochemical similarities 3.By embryology

5 Naming Organisms What is the name of this organism? Why do scientist not want to use common names?

6 The common name of many animals can be misleading. Ceylon frogmouth (Batrachostomus moniliger) is a bird. Killer whales (Orcinus orca ) are not whales, but dolphins.

7 Flying fish (Parezocoetus mesogaster) do not fly, but glide. Galliwasp (Diploglassus lessorae) is not a wasp but a lizard.

8 Why do scientist not use common names? Confusing – It may have more than one common name - Several things may have the same common name. Misleading – starfish is not a fish Why use a scientific name? There is only one scientific name Felis concolor Classifying Living Things NOTES:

9 Read pg. 300 - 304 What language is used for the scientific naming? Latin ( ex. "E Pluribus Unum“ = “one out of many or of many, one” )E Pluribus Unum Since 1873, the law requires that this motto appear on one side of every United States coin that is minted. What are the 2 parts of the scientific name? Genus (Latin for group) species general description exact kind organisms share a major only 1 kind of organism characteristicwithin a genus Scientific Name

10 Species name = describes the appearance or distribution of an organism. Taxonomy : Science of the naming and classifying organisms.

11 Recognizing Relationships Tell me something about each of these organisms. Carnegiea gigantea Nymphaea odorata Canis familiaris Peromyscus californicus Viola tricolor giant saguaro cactus fragrant water lily domestic dog common California mouse three color pansy

12 Genus + species names should be used when referring to an organism. Species name alone is not enough. Drosophila melanogaster is a fruit fly. Thamnophis melanogaster is a garter snake.

13 What is the correct way to write the scientific name? drosophila melanogaster Drosophila melanogaster D. melanogaster Read pg. 301 1. Use the genus & species names 2.Always capitalize the Genus, not the species.. 3.Underline it or use italics

14 Why are scientific names in Latin? 1.The language does not change. 2.It’s tradition. Universal 3.Don’t have to rename millions of species.

15 Improved system of naming plants & animals by using a two ‑ word name to identify the genus and species. “binomial nomenclature” Father of Taxonomy: Carolus Linnaeus (1707 ‑ 1778), a Swedish botanist whose original name was Carl von Linne.

16 Matter of Fact: How many species are there ? No one really knows how many species exist. Estimates vary from 3 to100 million. Taxonomists estimate that only 1.5 to 1.8 million species have been identified, but there are no central archives. Sea creatures found after 2005 Tsunami hit.

17 Read pg. 302 – Classifying Organisms Today taxonomists classify organisms based on: physical similarities genetic similarities biochemical similarities behavioral similarities Domain- Kingdom - Phylum - Class - Order - Family - Genus – Species - planet continent country state county city street house 8 Classification Groups http://nationalzoo.si.edu/Animals/GiantPandas/PandasFo rKids/classification/classification.htm

18 D id K ing P hillip C ry O ut F or G ood S paghetti D omain K ingdom P hylum C lass O rder F amily G enus S pecies To help you remember the seven classification groups in order, remember this sentence:

19 Notice how 1 Kingdom will have many phyla. A phylum will have many classes… One Kingdom will have 1000’s of species in it.

20 From the chart below, fill in the missing classifications.

21 Mammalia Plantae Primata FelidaeCanidae Homo sapiens Homo sapien Panthera

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23 Read pg. 305 - SPECIES What is the definition of a biological species? A group of natural populations that are interbreeding or that could interbreed, and that are reproductively isolated from other such groups. Hybrids – result of interbreeding by individuals of different species – usually infertile. * Usually artificially brought about. mare + male donkey = mule Bengal cat = domesticated cat + Asian Leopard cat

24 Liger = lion + tiger female male Wolfdog = German shepherd + Wolf Zebroid

25 Dichotomous Key: dividing into 2

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