Section 18-1 Review 1.What is binomial nomenclature? 2.What is the most inclusive taxon? 3.What is the least inclusive taxon? 4.What 2 kingdoms did Linnaeus.

Slides:

Advertisements

Similar presentations

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.

Advertisements

Taxonomy & Phylogeny Classification of Organisms.

Slide 1 of Modern Evolutionary Classification.

History of Classification

Chapter 18 – Classification

Ch 18- Classification Why do biologists organize living organisms into groups that have biological meaning? Study the diversity of life Use classification.

Chapter 18.  Why Classify? ◦ Scientists classify organisms into groups in a logical manner to make it easier to study the diversity of life. ◦ Taxonomy:

Phylogeny Systematics Cladistics

THE EVOLUTIONARY HISTORY OF BIODIVERSITY

End Show Slide 1 of 24 Copyright Pearson Prentice Hall 18-2 Modern Evolutionary Classification.

18-2 Modern Evolutionary Classification

Classification.

1 Apply Concepts To an evolutionary taxonomist, what determines whether two species are in the same genius 2 Explain What is a derived character 3 Review.

Chapter 17 Organizing Life’s Diversity

Chapter 18 Classification

Classification systems have changed over time as information has increased. Section 2: Modern Classification K What I Know W What I Want to Find Out L.

CHAPTER 25 TRACING PHYLOGENY. I. PHYLOGENY AND SYSTEMATICS A.TAXONOMY EMPLOYS A HIERARCHICAL SYSTEM OF CLASSIFICATION  SYSTEMATICS, THE STUDY OF BIOLOGICAL.

Phylogeny & The Tree of Life. Phylogeny  The evolutionary history of a species or group of species.

Classification Organizing the Diversity of Life. Why do we classify things? – Supermarket aisles – Libraries – Classes – Teams/sports – Members of a family.

SB3C. Examine the evolutionary basis of modern classification systems.

Classification and Taxonomy. THINK ABOUT IT –Scientists have been trying to identify, name, and find order in the diversity of life for a long time. The.

QUIZ What is the science that describes, names and classifies organisms? Linnaeus classified organisms according to their ______ & ______. (True or False)

Why do we classify things? Finding Order in Diversity Classification provides scientists and students a way to sort and group organisms for easier study.

Classification and Taxonomy. THINK ABOUT IT –Scientists have been trying to identify, name, and find order in the diversity of life for a long time. The.

Taxonomy Science of describing, naming, and classifying organisms. Designed by Linnaeus Based on morphology (form and structure) –Common name not useful.

Classification Chapter 18. Why Classify ? To study diversity of life in organized manner. ________________-science where organisms are classified in a.

Chapter 18. Finding Order in Diversity Biologist have found and named over 1.5 million species so far It is estimated that there are between 2 and 100.

Essential question: How and why do we classify organisms?

1 Chapter 18- Classification. 2 I. Finding order in Diversity A. Why classify? 1. To study the diversity of life, biologists use a classification system.

MODERN EVOLUTIONARY CLASSIFICATION In a way, organisms determine who belongs to their species by choosing with whom they will __________! Taxonomic.

Taxonomy Reflects Evolutionary History Section 15.4.

THIS IS Taxa & naming Bacterial Kingdoms Protists & Fungi Systematics Domains Animals, Plants, & Dichot. Keys.

Diversity of Living Things 1.1: Biodiversity. Biodiversity Number and variety of species and ecosystems on Earth By the end of 2010, 1.7 million species.

17.2 Modern Classification

Classification Section 18.2 & Phylogeny: Evolutionary relationships among organisms Biologists group organisms into categories that represent lines.

Classification Chapter 18.

Phylogeny & the Tree of Life

1 Chapter 18: Classification. 2 18–1 Finding Order in Diversity  Life on Earth has been changing for more than 3.5 billion years  1.5 million species.

Section 4 How are living things classified? A. Classification systems 1. Aristotle classified organisms more than 2000 years ago. 2. Carolus Linnaeus introduced.

Chapter 14 Notes Why Classify? Categories of Biological Classification: 1. Why Classify? –Eliminate confusion –Organize information –Reveal Evolutionary.

Chapter 18 Classification.

CLASSIFICATION Why Classify?. INQUIRY ACTIVITY 1) Construct a table with six rows and six columns. Label each row with the name of a different fruit.

Organizing Life’s Diversity Chapter 17. How Classification Began In order to better understand organisms scientists group them. Classification is the.

+ Taxonomy. + Biologist have identified and named 1.5 million species so far 2 – 100 million additional species have yet to be discovered.

Chapter 18 Classification.

CHAPTER 17.1 NOTES – CLASSIFICATION P I. What is classification? ___Classification______ - the grouping of objects or information based on similarities.

Classification. Taxonomy Taxonomy – classification of organisms Binomial system of nomenclature (Linnaeus) –Genus and species –Ex: Homo sapiens Taxon.

Chapter 17 Organizing Life’s Diversity Section 1 Classification.

Classification Finding Order in Diversity Life on Earth Life on Earth Changing for >3.5 billion years 1.5 million species named million species.

Chapter 26 Phylogeny and the Tree of Life

Lesson Overview Lesson Overview Modern Evolutionary Classification 18.2.

PHYLOGENY AND THE TREE OF LIFE.  Phylogeny is the evolutionary history of a species or a group of species.  To determine how an organism is classified,

HAPPY FRIDAY! Bellwork Classification Trees turn in under your table letter cabinet. You will have 10 minutes to STUDY your Test found in the back of the.

What is a Dichotomous Key?. Classification Chapter 18 Ridgewood High School

CLADOGRAMS CHAPTER 18 SECTION 2

Chapter 18-2: CLADOGRAMS.

Phylogeny & the Tree of Life

Chapter 17: The Tree of Life

Classification CLASSIFYING ORGANISMS.

Modern Evolutionary Classification 18-2

Classification Ch. 18.

Phylogeny and the tree of Life

Chapter 18 Classification.

Classification Chapter 18.

Phylogeny and the Tree of Life

Classification Chapter 18.

Phylogeny = evolutionary history of an organism;

Ch. 17 Biodiversity Mr. D.

Classification.

Presentation transcript:

Section 18-1 Review 1.What is binomial nomenclature? 2.What is the most inclusive taxon? 3.What is the least inclusive taxon? 4.What 2 kingdoms did Linnaeus identify? 5.Name the seven taxa identified by Linnaeus, from largest to smallest.

Modern Evolutionary Classification Section 18-2 Objectives: 9.1 Sequencing taxa from most inclusive to least inclusive in the classification of living things 9.2 Identifying organisms using a dichotomous key

Limitations to Linnaeus’ System  Based simply on visible similarities and differences  What did we learn from Lonesome George and the tortoise in the Prague Zoo?  Based on visible similarities, would you think dolphins are more closely related to humans or fish?

Phylogeny:  Def: the study of evolutionary relationships among organisms  Based on lines of evolutionary descent, not just physical similarities  This is called evolutionary classification.  It is based on recently shared common ancestors to show closer relationships.

Phylogenetic Tree or Cladogram Source:

Source: o-cz.com/african-white-backed- vulture-photo-3171.html Source: black-vulture-coragyps-atratus/perched-tree- transpantaneira Source: photo/painted-stork-mycteria- leucocephala/birds-just- started-migrate-park-early- august

Similarities in DNA and RNA  Look at the birds in Figure 18-8, on p.454.  Which 2 would you think were more closely related?  Both the American vultures and the stork will urinate on their own legs to let evaporation cool them.  DNA analysis showed the DNA sequences of these two birds were also more similar.