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Essential Questions

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Title: Organizing Life s Diversity Author: lbmassey Last modified by: Lake,Shane Created Date: 10/12/2005 5:39:50 PM Document presentation format – PowerPoint PPT presentation

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Title: Essential Questions


1
Essential Questions
  • What is an example of a vestigial organ?
  • What scientist came up with an alternate
    evolution theory?
  • Name Linnaeuss classification system from
    largest to smallest

2
Warm Up Nov. 6
  • Three rules for binomial nomenclature.
  • What is the difference between artificial and
    natural selection?

3
Warm Up Nov. 6
  • Why do we not use common names?
  • Why Is it important to classify animals?
  • What is taxonomy?

4
Warm up Nov. 7
  • Give an example of a kingdom.
  • What is the smallest category we discussed?
  • What is a taxon?

5
Warm up
  • Where does Archeabacteria live?
  • What type of cell does bacteria have?
  • What is a Domain?

6
Warm up
  • Who generally has a higher metabolism, boys or
    girls?
  • What happens to your metabolism as you get older?
  • Give an example of how you could increase your
    metabolism.

7
Warm up
  • Give two characteristics of the animal kingdom.
  • What does motile mean?
  • How many kingdoms are there?

8
Warm up
  • If an animal is in the same order, it also has
    which other taxa in common?
  • What is natural selection?
  • Why do we use dichotomous keys?

9
Warm up
  • Give an example of fungi.
  • How do plant get their food?
  • What does autotroph mean?

10
Classification
11
Finding Order in Diversity
12
Vocabulary
  • Taxonomy Phylum
  • Binomial Nomenclature
  • Taxon Kingdom
  • Species
  • Genus
  • Family
  • Order
  • Class

13
Warm Up
  • Why do we classify?
  • What is taxonomy?

14
Why Classify?
  • Use to name organisms and group them in a logical
    manner.
  • Taxonomy
  • The branch of biology concerned with the grouping
    and naming of organisms

15
Assigning Scientific Names
  • Why common names are confusing.
  • Felis concolor has 4 common names
  • Mountain lion, a puma, a cougar, or a panther
  • A common name can refer to 2 different species
    example is buzzard in the UK it refers to a
    hawk and in most of the US it refers to a vulture

16
  • Binomial nomenclature
  • Developed by Linnaeus
  • Two-word system to name organisms
  • Are always in Latin and Must be italicized or
    underlined
  • The first word (genus) is capitalized but the
    second word (descriptive term) is lowercase
  • Turdus migratorius (American Robin)

17
Linnaeuss System of Classification
  • Taxon each level within a naming system.
  • (commonly memorized from largest to smallest)
  • King Philip Came Over For Grannys Spaghetti

18
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19
  • Species
  • Organisms that look alike
  • Successfully reproduce among themselves
  • Genus
  • Group of closely related species
  • Family
  • Group of closely related genera

20
  • Order
  • Group of related families
  • Class
  • Group of related orders
  • Phylum/Divisions
  • Group of related classes
  • Kingdom
  • Group of related phyla

21
Essential Questions
  • What are the rules of Binomial Nomenclature?
  • What are the three domains?
  • Why are common names confusing?

22
Essential Questions
  • What is a species?
  • What is the broadest classification in Linneauss
    system?
  • What is the acronym for the system?

23
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24
  • Vocabulary
  • Dichotomous Key

25
Dichotomous Key
  • Is a set of paired statements that can be used to
    identify organisms
  • You choose one statement from each pair that best
    describes the organism
  • At the end you will identify the name or what
    group the organism belongs to

26
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27
Essential Questions
  • What are the three domains?
  • What class do we belong to?
  • What information can you get from Homo sapien?

28
Modern Evolutionary Classification
29
Vocabulary
  • Phylogeny
  • Cladogram

30
Evolutionary Classification
  • Phylogeny
  • The evolutionary relationship among organisms
  • Cladogram
  • A diagram that shows the evolutionary
    relationships among a group of organisms

31
Phylogeny
32
Cladogram
33
Essention Questions
  • What is a cladogram used for?
  • If animals are in the same class, what other
    groups do they belong to?
  • What is a phylogeny?

34
Kingdoms and Domains
35
Vocab.
  • Domain
  • Eukarya
  • Bacteria
  • Archaea

36
The Tree of Life Evolves
  • The six-kingdom system of classification includes
    the kingdoms Eubacteria, Archaebacteria,
    Protista, Fungi, Plantae, and Animalia

37
The Three-Domain System
  • Domain a more inclusive category than any other
    larger than a kingdom
  • The 3 domains are
  • Eukarya (include protists, fungi, plants, and
    animals)
  • Bacteria (corresponds to Eubacteria)
  • Archaea (corresponds to Archaebacteria)

38
Essential Questions
  • What are two differences between plants and
    animals?
  • How does fungi get its nutrients?
  • What does non-motile mean?

39
Warm Up
  • What is an ecological footprint?
  • What happened during the industrial revolution?
  • Give an example of mutualism.

40
Domain Bacteria
  • Corresponds to the kingdom Eubacteria
  • Contains all unicellular, prokaryotic cells
  • Have thick, rigid cell walls
  • Either heterotroph or autotroph
  • Some need oxygen while others are killed by
    oxygen
  • Example Strepococcus, Escherichia coli

41
Domain Archaea
  • Corresponds to kingdom Archaebacteria
  • Contain all prokaryotic cells
  • Live in some of the most extreme environments
  • Volcanic hot springs, brine pools, black organic
    mud devoid of oxygen
  • Most can survive only in the absence of oxygen
  • Examples Methanogens, halophiles

42
Domain Eukarya
  • Consist of all organisms that have a nucleus
  • Organized into 4 kingdoms
  • Protista, Fungi, Plantae, and Animalia

43
  • Protista
  • Members display the greatest variety
  • Most are unicellular but some are multicellular
  • Either autotroph or heterotroph
  • Examples
  • Amoeba, paramecium, giant kelp

44
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45
  • Fungi
  • A unicellular or multicellular heterotrophic
    eukaryote
  • Absorbs nutrients obtained by decomposing dead
    organisms and wastes in the environment
  • Examples
  • Mushrooms, which are multicellular
  • Yeasts, which are unicellular

46
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47
  • Plantae
  • Multicellular organisms that are photosynthetic
    autotrophs
  • Nonmotile cannot move from place to place
  • Contain cell walls
  • Includes cone-bearing and flowering plants, as
    well as mosses and ferns

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49
  • Animalia
  • Multicellular consumers that eat and digest other
    organisms for food
  • Animal cells have no cell wall
  • Most are motile for at least some part of their
    life cycle
  • Incredible amount of diversity
  • Sponges, worms, insects, fish, mammals
  • Many exist in nearly every part of the planet

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