Presentation is loading. Please wait.

Presentation is loading. Please wait.

Classification Systems

Published byMagnus Pitts Modified over 9 years ago

Similar presentations

Presentation on theme: "Classification Systems"— Presentation transcript:

1 Classification Systems

2 Introduction to Classification
Taxonomy science of identifying and classifying organisms Biological Classification organized grouping organisms into categories based on: physical descriptions evolutionary relationships

3 Carl Linnaeus 1707-1778 Swedish scientist “father” of taxonomy
classified organisms based on their physical similarities established the current binary naming system used to name species

4 Traditional Classifications
based on human philosophical conclusions on the complexity of organisms called “scala naturae” based on the belief that species do not change or evolve organized in the following way: humans mammals and birds frogs and fish worms and insects plants

5 Traditional Taxonomic Levels
taxon – category used in classification species – group of organisms that mate naturally and produce healthy offspring genus – group of species that share similar features family – group of genera that share similar features order – group of families that share similar features class – group of orders that share similar features phylum – group of classes that share similar features kingdom – group of phyla that share similar features Humans Kingdom – Animalia Phylum – Chordata Class – Mammalia Order – Primates Family – Hominidae Genus – Homo Species – Homo sapiens Examples – pg 17

6 Binary Nomenclature formal naming system developed by Linnaeus
species are named using their genus name followed by their specific name Homo sapiens genus name is capitalized Homo specific name is not capitalized sapiens both genus and specific names are italicized Examples – pg 17

7 Create a dichotomous key using the following footprints.
Dichotomous Keys used to identify species series of branching two part statements Create a dichotomous key using the following footprints.

8 Dichotomous Key – Plant Identification

9 Phylogeny science of evolutionary relationships between species
based on the theory of evolution all living things are descended from a common ancestor species are able to change/evolve over time

10 Examples – pgs 22-23 Phylogenetic Tress diagram representing evolutionary relationships between different species created using fossil records and similarities in genetic codes Clade is a group of species that include a single common ancestor. Clades vary in size. A large clade can include smaller clades.

11 Think/Pair/Share Why are classification systems important in biology?
What are some of the challenges in classifying organisms?

Download ppt "Classification Systems"

Similar presentations

Natural Selection Part 2

Natural Selection Part 2
Classification. Over 2 million species of organisms have been found and named Thousands of new species are being discovered each year There may be as.

Classification. Over 2 million species of organisms have been found and named Thousands of new species are being discovered each year There may be as.
Classification CP Biology.

Classification CP Biology.
CLASSIFICATION OF ORGANISMS. Biologists have classified nearly 2 million species Estimates range from 13 million to 40+ million The science of describing,

CLASSIFICATION OF ORGANISMS. Biologists have classified nearly 2 million species Estimates range from 13 million to 40+ million The science of describing,
Classifying the Diversity of Life – Systematics: Study of the diversification of living forms, both past and present, and their relationships – Taxonomy:

Classifying the Diversity of Life – Systematics: Study of the diversification of living forms, both past and present, and their relationships – Taxonomy:
Chapter 14 Lesson 2 Classifying Species. Classification grouping objects or organisms based on similarities grouping objects or organisms based on similarities.

Chapter 14 Lesson 2 Classifying Species. Classification grouping objects or organisms based on similarities grouping objects or organisms based on similarities.
Classification Chapter 2.

Classification Chapter 2.
Chapter 20 Classification Review. Phylogeny is the evolutionary history of a species or group of related species The discipline of systematics classifies.

Chapter 20 Classification Review. Phylogeny is the evolutionary history of a species or group of related species The discipline of systematics classifies.
Science 7.  Explain why biologists classify organisms.  Relate the levels of classification to the relationships between organisms.  List characteristics.

Science 7.  Explain why biologists classify organisms.  Relate the levels of classification to the relationships between organisms.  List characteristics.
Classification Organizing the Diversity of Life. Why do we classify things? – Supermarket aisles – Libraries – Classes – Teams/sports – Members of a family.

Classification Organizing the Diversity of Life. Why do we classify things? – Supermarket aisles – Libraries – Classes – Teams/sports – Members of a family.
Taxonomy & Classification of Organisms What is Classification? Classification is the grouping of information or objects based on similarities. Taxonomy.

Taxonomy & Classification of Organisms What is Classification? Classification is the grouping of information or objects based on similarities. Taxonomy.
Fossils Earth’s Beginning Age and Eras Classification.

Fossils Earth’s Beginning Age and Eras Classification.
Chapter 18.  The science of grouping organisms according to their presumed natural relationships.  ARISTOTLE ◦ First to classify organisms more than.

Chapter 18.  The science of grouping organisms according to their presumed natural relationships.  ARISTOTLE ◦ First to classify organisms more than.
CLASSIFICATION “Grouping together items into categories based on a set criteria”

CLASSIFICATION “Grouping together items into categories based on a set criteria”
1 Classification 2 There are 13 billion known species of organisms There are 13 billion known species of organisms This is only 5% of all organisms that.

1 Classification 2 There are 13 billion known species of organisms There are 13 billion known species of organisms This is only 5% of all organisms that.
17.1 History of Classification

17.1 History of Classification
Systematics the study of the diversity of organisms and their evolutionary relationships Taxonomy – the science of naming, describing, and classifying.

Systematics the study of the diversity of organisms and their evolutionary relationships Taxonomy – the science of naming, describing, and classifying.
Chapter 17: Organizing Life’s Diversity

Chapter 17: Organizing Life’s Diversity
C LASSIFICATION : Organizing Life’s Diversity. H OW C LASSIFICATION B EGAN Organizing items can help you understand them better & find them more easily.

C LASSIFICATION : Organizing Life’s Diversity. H OW C LASSIFICATION B EGAN Organizing items can help you understand them better & find them more easily.
Unit 6- Classification Taxonomy- Taxonomy- The science of describing, naming, & classifying organisms The science of describing, naming, & classifying.

Unit 6- Classification Taxonomy- Taxonomy- The science of describing, naming, & classifying organisms The science of describing, naming, & classifying.

Similar presentations

Ads by Google