Modern Evolutionary Classification 18 2 Modern Evolutionary classification

  • Slides: 13
Download presentation
Modern Evolutionary Classification 18. 2

Modern Evolutionary Classification 18. 2

Modern Evolutionary classification • Taxonomic groups are invented by scientist to group organisms with

Modern Evolutionary classification • Taxonomic groups are invented by scientist to group organisms with similar characteristics

Which Similarities are most important • Taxonomists try to group organisms according to biologically

Which Similarities are most important • Taxonomists try to group organisms according to biologically important characteristics – Linnaeus grouped species based on visible similarities (Dolphin example: Fish vs. Mammal) Barnacle crab limpet

Evolutionary Classification Limpet and barnacle larvae are very different. • Barnacles have jointed limbs,

Evolutionary Classification Limpet and barnacle larvae are very different. • Barnacles have jointed limbs, Limpets DON’T ! • Barnacles have a segmented body, Limpets DON’T ! • Barnacles have an exoskeleton that molts, Limpets DON’T !

Evolutionary Classification Crab and barnacle larvae are very similar • Barnacles have jointed limbs,

Evolutionary Classification Crab and barnacle larvae are very similar • Barnacles have jointed limbs, So do CRABS ! • Barnacles have a segmented body, So do CRABS ! • Barnacles have an exoskeleton that molts, So do CRABS !

Evolutionary Classification • Organisms are grouped together based on evolutionary decent not just physical

Evolutionary Classification • Organisms are grouped together based on evolutionary decent not just physical traits (WHY? ? ) • The higher the level of the taxon, the further back in time is the common ancestor

Evolutionary Classification • Evolutionary classification helps scientist to know how one lineage branched from

Evolutionary Classification • Evolutionary classification helps scientist to know how one lineage branched from another

Lion • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Carnivora •

Lion • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Carnivora • Family: Felidae • Genus: Panthera • Species: leo Tiger • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Carnivora • Family: Felidae • Genus: Panthera • Species: tigris

Lion • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Carnivora •

Lion • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Carnivora • Family: Felidae • Genus: Panthera • Species: leo Grey Wolf • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Carnivora • Family: Canidae • Genus: Canis • Species: C. lupus

Cladistic analysis • A way of classifying organisms using only new evolutionary characteristics •

Cladistic analysis • A way of classifying organisms using only new evolutionary characteristics • Derived characteristics - These characteristics appear in later organisms but not earlier ones • Cladogram: a diagram used to show evolutionary relationships

Cladogram • Help us to understand how one lineage branched from another in the

Cladogram • Help us to understand how one lineage branched from another in the course of evolution. (family tree)

1. ______ Wings 2. ______ 6 Legs 3. ______ Segmented Body 4. ______ Double

1. ______ Wings 2. ______ 6 Legs 3. ______ Segmented Body 4. ______ Double set of wings 5. ______ Jumping Legs 6. ______ Crushing mouthparts 7. ______ Legs 8. ______ Curly Antennae

Answer 1. ___F___ Wings 2. ___C___ 6 Legs 3. ___A___ Segmented Body 4. ___G___

Answer 1. ___F___ Wings 2. ___C___ 6 Legs 3. ___A___ Segmented Body 4. ___G___ Double set of wings 5. ___E___ Jumping Legs 6. ___D___ Crushing mouthparts 7. ___B___ Legs 8. ___H___ Curly Antennae

18 2 Modern Evolutionary Classification Evolutionary Classification The18 2 Modern Evolutionary Classification Evolutionary Classification The
Classification The Kingdoms Evolutionary relationships and classification EvolutionaryClassification The Kingdoms Evolutionary relationships and classification Evolutionary
Evolutionary Algorithms CS 472 Evolutionary Algorithms 1 EvolutionaryEvolutionary Algorithms CS 472 Evolutionary Algorithms 1 Evolutionary
Lesson Overview Modern Evolutionary Classification 18 2 ModernLesson Overview Modern Evolutionary Classification 18 2 Modern
Classification Classification Classification Classification Features and labels GreenClassification Classification Classification Classification Features and labels Green
Classification 5 3 Classification of Biodiversity Classification ClassificationClassification 5 3 Classification of Biodiversity Classification Classification
Classification of Living Things CLASSIFICATION CLASSES Classification CLASSIFICATIONClassification of Living Things CLASSIFICATION CLASSES Classification CLASSIFICATION
Lesson Overview Modern Evolutionary Classification Lesson Overview 18Lesson Overview Modern Evolutionary Classification Lesson Overview 18
18 2 Modern Evolutionary Classification Bell Ringer 118 2 Modern Evolutionary Classification Bell Ringer 1
Lesson Overview 18 2 Modern Evolutionary Classification THINKLesson Overview 18 2 Modern Evolutionary Classification THINK
Lesson Overview Modern Evolutionary Classification Lesson Overview 18Lesson Overview Modern Evolutionary Classification Lesson Overview 18
Section 18 2 Modern Evolutionary Classification CHAPTER 18Section 18 2 Modern Evolutionary Classification CHAPTER 18