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Diversity of Organisms and Classification. Classification of Organisms. Kingdom. Phylum / Division. Class. Order. Family. Genus. Species. Species. The smallest group of organisms classified which can interbreed with each other to produce fertile offspring. Five Kingdom System. Bacteria

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classification of organisms
Classification of Organisms

Kingdom

Phylum / Division

Class

Order

Family

Genus

Species

species
Species
  • The smallest group of organisms classified which can interbreed with each other to produce fertile offspring
five kingdom system
Five Kingdom System
  • Bacteria
  • Protists
  • Fungi
  • Animals
  • Plants
bacteria kingdom
Bacteria Kingdom
  • Unicellular, microscopic
  • No nucleus
    • Prokaryotic
  • No chlorophyll
    • Saprophytic or parasitic
protist kingdom
Protist kingdom
  • Unicellular; microscopic
  • Nucleus present
    • Eukaryotic
  • Autotrophic or heterotrophic
fungus kingdom
Fungus kingdom
  • Eukaryotic
  • Made up of hyphae
  • No root, stem and leaf
  • No chlorophyll
    • Saprophytic or parasitic
  • Reproduce by forming spores
animal kingdom
Animal Kingdom
  • Eukaryotic
  • Divided into two groups according to the presence or absence of backbone:
    • Invertebrates : without backbone
    • Vertebrates : with backbone
invertebrate
Invertebrate

Coelenterates

  • 2 layers of cells
  • Have tentacles with
  • sting cells
  • One opening
flatworm
Flatworm
  • Long and flattened body
  • Free living or parasitic
ringed worms
Ringed worms
  • Long and segmented body
  • Have chaetae for locomotion
roundwoms
Roundwoms

Long, cylindrical and segmented body

Most of them are parasites

molluscs
Molluscs
  • Soft and unsegmented body
  • Covered by a hard shell
echinoderms
Echinoderms
  • Marine animals with 5-radial plan body
  • Have external spines
arthropods
Arthropods
  • Segmented body
  • Have a hard exoskeleton and several pairs
  • of jointed legs
  • Divided into 4 classes
  • Crustaceans
  • Arachnids
  • Myriapods
  • Insects
vertebrates
Vertebrates
  • Divided into 5 groups:
    • Fish
    • Amphibians
    • Reptiles
    • Birds
    • Mammals
slide21
Fish
  • Aquatic
  • Cold-blooded
  • Body covered with wet and slimy scales
  • Streamline body for easy movement through water
  • Fins for balance and to control movement
  • Gills for breathing
  • External fertilization
amphibians
Amphibians
  • Cold-blooded
  • Moist, scaleless skin
  • Limbs present
    • tetrapods
  • Larvae (tadpoles) use gills for breathing; adults use lungs
  • External fertilization
reptiles
Reptiles
  • Cold-blooded
  • Body covered with dry, hard scales
  • Live on land
  • Breathe with lungs
  • Internal fertilization; lay shelled eggs
birds
Birds
  • Warm-blooded
  • With feathers and wings
  • Beak for feeding
  • Lungs for breathing
  • Internal fertilization; lay shelled eggs
mammals
Mammals
  • Warm-blooded
  • Hairs on skin
  • Females have mammary glands for producing milk
  • Lungs for breathing
  • Diaphragm present
  • Internal fertilization; embryos develop inside mothers’ bodies
plant kingdom
Plant Kingdom
  • Eukaryotic
  • Most plants contains photosynthetic pigments (e.g. chlorophyll) for photosynthesis
    • Autotrophic
  • Can be divided into two groups:
    • Non-flowering plants
    • Flowering plants
non flowering plants
Non-flowering plants
  • 4 groups:
    • Algae
    • Mosses
    • Ferns
    • Gymnosperms
algae
Algae
  • Aquatic
  • May be unicellular or multicellular
  • No root, stem or leaf
  • Contain photosynthetic pigments (e.g. chlorophyll) for photosynthesis
mosses
Mosses
  • With simple leaves and stems
  • No root; with rhizoids for anchorage and absorption of water
  • Reproduce by spores
  • No vascular tissues
  • Found in damp area
ferns
Ferns
  • With true roots, stems, leaves and vascular tissues
  • Reproduce by spores
  • Live in damp places
gymnosperms
Gymnosperms
  • Reproduction by producing seeds
    • Seeds develop in cones, not enclosed by fruits

 naked seeds

  • Needle-shaped leaves to reduce water loss
angiosperms flowering plants
Angiosperms (Flowering plants)
  • With flowers for reproduction
  • Seeds are produced inside the fruit (matured ovary)
two groups of flowering plants
Two groups of flowering plants

Dicotyledons

Monocotyledons

Cotyledons

Two

One

Leaf venation

Netted

Parallel

Root system

Tap root system

Fibrous root system