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Classification & Dichotomous Key

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Presentation on theme: "Classification & Dichotomous Key"— Presentation transcript:

1 Classification & Dichotomous Key
Goals: I can list the taxonomic classification levels in order I can recognize a properly written scientific name I can use a dichotomous key to classify and name organisms

2 8 Major Categories of Classification
Species is the most specific Domain Dear King Phillip Came Over For Good Soup

3

4 6th Grade Review 6.12C Recognize that the broadest taxonomic classification of living organisms is divided into currently recognized Domains All living things are classified into taxonomic groups: the largest and broadest umbrella is the domain The 3 Domains for the Taxonomic Classification of Living Things are as follows: Archaea – live in extreme environments, one-celled critters = unicellular Bacteria – most are decomposers, some cause disease (also called Eubacteria) Eukaryota – protists, fungi, plants & animals

5 6th Grade Review 6.12D Identify the basic characteristics of organisms, including prokaryotic or eukaryotic, unicellular or multicellular, autotrophic or heterotrophic, and mode of reproduction that further classify them in the currently recognized Kingdoms There are currently 6 kingdoms – organisms are placed into the kingdoms based on the number and type of cells they have,  and their nutritional needs. The 6 Kingdoms of living things (some are unicellular and/or multicellular) are as follows: Archaebacteria – unicellular, prokaryotic Eubacteria – unicellular, prokaryotic Fungi – unicellular or multicellular (heterotrophic) and eukaryotic Protists – unicellular or multicellular (autotrophic, heterotrophic) and eukaryotic Plants – multicellular (autotrophic) and eukaryotic Animals – multicellular (heterotrophic) and eukaryotic Plant cells are termed autotrophic – plants are producers: make their own food through photosynthesis Animal cells are heterotrophic-animals are consumers

6 Taxonomy Classification
Taxonomy – the science of classifying (naming) organisms Binomial Nomenclature developed by Carolus Linnaeus 2-word naming system (genus and species) Examples: Felis concolor (mountain lion) Ursus arctos (brown bear) Homo sapiens (humans) Panthera leo (lion) Panthera tigris (tiger) Recognize and properly write a scientific name: Homo sapiens, or Homo sapiens, or H. sapiens 1st word is Capitalized –Genus 2nd word is lowercase —species Underline Italicize Abbreviate the genus (first name) (P. tigris or P. leo)

7 Dichotomous Key Use a dichotomous key to identify or to distinguish one type of organism or object from another. (2 choices – yes/no for each trait) The branches can show who is most closely related to whom.

8 Shoe Dichotomous Key a. This shoe covers the toes completely……………..…go to 2 b. This shoe does NOT cover the toes completely………………..go to 3 1a 1b

9 Shoe Dichotomous Key 1a 1b
a. This shoe covers the toes completely……go to 2 b. This shoe does NOT cover the toes completely……go to 3 1a 1b

10 Shoe Dichotomous Key 2b 2a 2. a. This shoe is black and white……go to 4
b. This shoe has color……………….…Shoe dill 2b 2a

11 Shoe Dichotomous Key 2b 2a 2. a. This shoe is black and white……go to 4
b. This shoe has color……………….…Shoe dill 2b 2a

12 Shoe Dichotomous Key 3a 3b 3. a. This shoe is flat……………Shoe march
b. This shoe is NOT flat……Shoe helvey 3a 3b

13 Shoe Dichotomous Key 3a 3b 3. a. This shoe is flat……………Shoe march
b. This shoe is NOT flat……Shoe helvey 3a 3b

14 Shoe Dichotomous Key 4b 4a
4. a. This shoe covers the ankle……Shoe Kiser b. This shoe does NOT cover the ankle…Shoe Jones 4b 4a

15 Shoe Dichotomous Key 4b 4a
4. a. This shoe covers the ankle……Shoe Kiser b. This shoe does NOT cover the ankle…Shoe Jones 4b 4a

16 Dichotomous Key Activities

17 Lady Bug Dichotomous Key
1. a. If the lady bug has feather like antennas….go to 2 b. If the lady bug has knob antennas…..go to 4 2. a. Spotted wings present…… Ladea ashley b. Solid wings present……….. go to 3 3. a. Has six legs…………………………..Ladea kaley b. Has 4 legs…………………………...Ladea jessica 4. a. Solid abdomen present…. Ladea elena b. Stripes on abdomen………go to 5 5. a. Spotted wings……Ladea rachel b. Solid wings……..…Ladea allison B C D E F

18 Leaf Dichotomous Key 1. a. If the leaf has many smaller leaves on it, called leaflets…….go to 2 b. If the leaf does NOT have any leaflets…..go to 3 2. a. If the leaflets are rounded…… Robinia pseudoacacia b. If the leaflets are pointed……. Fraxinus pennsylvanica 3. a. If leaf veins are singular…………………………..go to 4 b. If the leaf veins have multiple branches….go to 5 4. a. If the leaf edges are pointed …. Castanea dentata b. If the leaf edges are rounded …Quercus stellata 5. a. If leaf is fat and round…Populus tremuloides b. If the leaf is shaped like a hand …Acer saccharinum

19 1. a. Alien with antennae………………….go to 2
Alien Dichotomous Key 1. a. Alien with antennae………………….go to 2 b. Alien with without hair..…..go to 3 2. a. Alien with mouth……………….Alienus robert b. Alien without mouth…………Alienus george 3. a. Alien with 2 eyes …… Alienus jack b. Alien with 3 eyes……. go to 4 4. a. Alien with splatter chest…. Alienus sam b. Alien without splatter…Alienus bob B C D E

20 Taxonomic Classification & Scientific Names
Come up with your own way to remember the 8 major categories of classification in order. (Explain it.) Explain 3 ways of writing a scientific name for an organism. (Be specific) What is the most diverse taxonomic level? What is the most specific taxonomic level? Explain which organisms (A-D) are the closest related? Explain. Which organism (A-D) is least like the others? Explain. List the current domains of taxonomic classification. List the current kingdoms of taxonomic classification.

21 A B C D Kingdom Animalia Phylum/ Division Chordata Class Mammalia Aves Order Primate Carnivora Anseriformes Family Homindae Felidae Anatidae Genus Homo Panthera Anas Species sapiens leo tigris acuta

22 Answer Key

23 Lady Bug Dichotomous Key
1. a. If the lady bug has feather like antennas….go to 2 b. If the lady bug has knob antennas…..go to 4 2. a. Spotted wings present…… Ladea ashley F b. Solid wings present……….. go to 3 3. a. Has six legs…………………………..Ladea kaley E b. Has 4 legs…………………………...Ladea jessica C 4. a. Solid abdomen present…. Ladea elena D b. Stripes on abdomen………go to 5 5. a. Spotted wings……Ladea rachel A b. Solid wings……..…Ladea allison B A B C D E F

24 Leaf Dichotomous Key 1. a. If the leaf has many smaller leaves on it, called leaflets…….go to 2 b. If the leaf does NOT have any leaflets…..go to 3 2. a. If the leaflets are rounded…… Robinia pseudoacacia D b. If the leaflets are pointed……. Fraxinus pennsylvanica C 3. a. If leaf veins are singular…………………………..go to 4 b. If the leaf veins have multiple branches….go to 5 4. a. If the leaf edges are pointed …. Castanea dentata E b. If the leaf edges are rounded …Quercus stellata A 5. a. If leaf is fat and round…Populus tremuloides B b. If the leaf is shaped like a hand …Acer saccharinum F

25 1. a. Alien with antennae ………………….go to 2
Alien Dichotomous Key 1. a. Alien with antennae ………………….go to 2 b. Alien with without hair..…..go to 3 2. a. Alien with mouth……………….Alienus robert E b. Alien without mouth…………Alienus george C 3. a. Alien with 2 eyes …… Alienus jack B b. Alien with 3 eyes……. go to 4 4. a. Alien with splatter chest…. Alienus sam D b. Alien without splatter…Alienus bob A A B C D E

26 Taxonomic Classification & Scientific Names
Come up with your own way to remember the 8 major categories of classification in order. (Explain it.) answers vary Explain - (domain, kingdom, phylum, class, order, family, genus, species) Explain 3 ways of writing a scientific name for an organism. (Be specific) italicized, underline, abbreviate the genus and write out the species – in all the 1st letter of the genus is capitalized and nothing else What is the most diverse taxonomic level? domain What is the most specific taxonomic level? species Explain which organisms (A-D) are the closest related? Explain. B and C – they share the same genus Which organism (A-D) is least like the others? Explain. D, all the others share the same class List the current domains of taxonomic classification. Archaea, Bacteria, Eukaryota List the current kingdoms of taxonomic classification. Archaebacteria, Eubacteria, Fungi, Protists, Plants, Animals

27 A B C D Kingdom Animalia Phylum/ Division Chordata Class Mammalia Aves Order Primate Carnivora Anseriformes Family Homindae Felidae Anatidae Genus Homo Panthera Anas Species sapiens leo tigris acuta

28 Try Making your own Dichotomous Key
You can use objects in the room or draw your own pictures. Use at least 6 objects.

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