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KINGDOMS OF LIFE Taxonomy.

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Presentation on theme: "KINGDOMS OF LIFE Taxonomy."— Presentation transcript:

1 KINGDOMS OF LIFE Taxonomy

2 TAXONOMY: the science of classification
Classification- the grouping of objects or information based on similarities.

3 ARISTOTLE (384-322 B.C.) First taxonomist (“Father of Classification”)
“Mine is the first step and therefore a small one, though worked out with much thought and hard labor. You, my readers or hearers of my lectures, if you think I have done as much as can fairly be expected of an initial start … will acknowledge what I have achieved and will pardon what I have left for others to accomplish.”

4 Aristotle created: TWO KINGDOMS
PLANTS ANIMALS Trees Shrubs Herbs In Water In the Air On Land

5 Carolus Linnaeus / Carl von Linne` The Father of Modern Taxonomy

6 BINOMIAL NOMENCLATURE
Two word naming system Genus - first word species - second word Describes a characteristic of the organism Latin is the language used (some Greek) (Also called “Linneaus’s system”)

7 LEVELS OF CLASSIFICATION:
KINGDOM PHYLUM CLASS 0RDER FAMILY GENUS SPECIES “Species”: organisms that can interbreed and produce fertile offspring

8 HOW ORGANISMS ARE CLASSIFIED:
STRUCTURAL SIMILARITIES (physical structures) BREEDING BEHAVIOR (asexual/sexual reproduction) GEOGRAPHIC LOCATION (Biomes) CHROMOSOME COMPARISONS (chromosome banding) BIOCHEMISTRY SIMILAR DNA PHYLOGENY (evolutionary history of an organism) PHYLOGENY - EVOLUTIONARY HISTORY CLADISTICS - INHERITED TRAITS FROM ANCESTORS CLADISTICS (cladogram 7:17 min.) MODE OF NUTRITION (producer/autotroph consumer/heterotroph) PROKARYOTE EUKARYOTE (no nucleus/nucleus)

9 Theory of Evolution: the change in populations over time Charles Darwin (1809 – 1882)
Proposed that species changed over time by natural selection Natural selection – organisms with traits suited to their environment survive and reproduce at a greater rate than others less suited Homologous structures – similar structures of common ancestors Research was conducted on the Galapagos Islands

10 Classification (6:12 minutes)
1. What is the challenge/problem facing taxonomist trying to classify an organism? 2. What was the rescuer used by taxonomists to solve the problem of classification of organisms?

11 THE SIX KINGDOMS OF LIFE
PLANTS ANIMALS FUNGI PROTISTS EUBACTERIA ARCHAEBACTERIA

12 KINGDOM ARCHAEBACTERIA
Unicellular Prokaryotes Cell walls Asexual reproduce - (binary fission) and/or sexually - (conjugation) Live in extreme habitats: 1. Oxygen-free (Methanogens) 2. Salty brines (Halophiles) 3. Hot, acidic H20 (Acidophiles)

13 KINGDOM EUBACTERIA Unicellular Prokaryotes Cell walls
Binary fission and/or conjugation Live everywhere Some are: 1. Autotrophs, Heterotrophs, Parasites 2. Decomposers - Saprophytes (saprobes) 3. Nitrogen Fixation

14 KINGDOM PROTISTA Unicellular or multicellular Eukaryotes
Heterotrophs & autotrophs: Plantlike (algae) – autotrophs, animal-like (protozoans) – heterotrophs or fungus-like Sexual and/or asexual reproduction Found in aquatic habitats

15 KINGDOM FUNGI Multicellular (most) Eukaryotes
Absorptive heterotrophs (extracellular digestion) Cell walls (made of chitin) Sexual and/or asexual reproduction – by spores Found in damp, dark environments Decomposers

16 KINGDOM PLANTAE Multicellular Eukaryotes Autotrophs/ photosynthesis
Cell walls (made of cellulose) Sexual reproduction (most) by seeds or spores Found on all types of land

17 KINGDOM ANIMALIA Multicellular Eukaryotes Ingestive heterotrophs
Cell membranes Specialized cells Sexual reproduction (most) by eggs & sperm Found everywhere

18 THE END!


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