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Kingdom Animalia. ~ Characteristics ~ . Multicellular Eukaryotic with no cell walls Heterotrophs (consumers) . ~ Characteristics ~. Have a nervous system to respond to their environment Locomotion relates to ability to obtain food Most animals develop from a zygote becoming a

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~ Characteristics ~


Eukaryotic with no cell walls

Heterotrophs (consumers)

~ Characteristics ~
  • Have a nervous system to respond to their environment
  • Locomotion relates to ability to obtain food
  • Most animals develop from a zygote becoming a
  • A single layer of cells surrounding a fluid-filled space forming a hollow ball of cells called a gastrula.
developmental characteristics
~ Developmental Characteristics ~
  • The gastrula ismade up of three parts:
    • Ectoderm, a layer of cells on the outer surface of the gastrula,grows and divides developing into skin and nervous tissue.
    • Endoderm, a layer of cells lining the inner surface of the gastrula,develops into the lining of the animal’s digestive tract.
    • Mesoderm, made up of two layers of cells lying between the ectoderm and endoderm, forms muscles, reproductive organs and circulatory vessels.
developmental characteristics6
~ Developmental Characteristics ~
  • Animals that develop a mouth from the indented space in the gastrula are protostomes.
  • Animals that develop an anus from the opening in the gastrula are deuterostomes.
body plans
~Body Plans ~
  • Animals that are irregular in shape are asymmetrical.
  • Animals that are regular in shape are symmetrical.
body plans9
~ Body Plans ~
  • An animal has radial symmetry if it can be divided along any plane, through a central axis, into equal halves.
  • An animal has bilateral symmetry if it can be divided down its length into similar right and left halves forming mirror images of each other.
body plans11
~ Body Plans ~
  • Acoelomates– animals have three cell layers with a digestive tract but no body cavities.
  • Pseudocoelomates – animals with a fluid-filled body cavity partly lined with mesoderm.
  • Coelomates – animals with a body cavity completely surrounded by mesoderm.
protection and support
~ Protection and Support ~
  • Though not all animals have a skeleton, those that do can be divided into two groups:
    • Those with an exoskeleton – a hard, waxy coating on the outside of the body that protects internal organs, provides a framework for support, and a place for muscle attachment.
    • Those with an endoskeleton – support framework within the body that protects some organs and a brace for muscles to pull against.
  • 8 main phyla
  • No backbones
  • 95% of all animals are in this group
invertebrate phylum porifera
~Invertebrate Phylum Porifera~
  • Sponges
  • simplest form of animal life
  • live in water
  • Do not move around
  • no symmetry
  • Pores (holes) all over body
  • 5000 species
invertebrate phylum porifera16
~Invertebrate Phylum Porifera~
  • Filter Feeders: a sponge filters particles of food from water using collar cells and then pumps the water out the osculum.
invertebrate phylum porifera17
~Invertebrate Phylum Porifera~
  • Examples: Tube Sponge, Glass Sponge, Sea Sponge
invertebrate phylum cnidaria
~Invertebrate Phylum Cnidaria~
  • Live in water
  • Most have tentacles
  • catch food with stinging cells
  • gut for digesting
invertebrate phylum cnidaria19
~Invertebrate Phylum Cnidaria~
  • 2 different shapes
  • Medusa - like a jellyfish
  • Polyp - like a hydra
invertebrate phylum cnidaria20
~Invertebrate Phylum Cnidaria~
  • Examples - Jellyfish, Hydra, sea anemones, and corals
invertebrate phylum platyhelminthes
~Invertebrate Phylum Platyhelminthes ~
  • Flatworms
  • Flat, ribbon-like body
  • Live in water or are parasites
  • bilateral symmetry
invertebrate phylum platyhelminthes22
~Invertebrate Phylum Platyhelminthes ~
  • Examples: Planaria
  • eyespots detect light
  • food and waste go in and out the same opening
invertebrate phylum platyhelminthes23
~Invertebrate Phylum Platyhelminthes ~
  • Examples: Tapeworm
  • Parasite that lives in intestines of host absorbing food
invertebrate phylum platyhelminthes24
~Invertebrate Phylum Platyhelminthes ~
  • Examples: Fluke
  • parasite
  • lives inside

of host

invertebrate phylum nematoda
~Invertebrate Phylum Nematoda ~
  • Roundworms
    • Round, tubular body
    • small or microscopic
    • bilateral symmetry
    • have both a mouth and anus
    • Live in water or are parasites
invertebrate phylum nematoda26
~Invertebrate Phylum Nematoda ~
  • Examples:
    • Hookworm
    • Trichinella
invertebrate phylum mollusca
~Invertebrate Phylum Mollusca ~
  • Soft bodies
  • Hard Shells
  • Live on land or in water
  • have a circulatory system and a complex nervous system.
  • Important food source for humans
invertebrate phylum mollusca28
~Invertebrate Phylum Mollusca ~

Class Gastropoda

  • snails and slugs
  • may have 1 shell
  • stomach-footed - move on stomach
invertebrate phylum mollusca29
~Invertebrate Phylum Mollusca ~

Class Bivalves

  • 2 shells hinged together
  • clams, oysters,

scallops and mussels

invertebrate phylum mollusca30
~Invertebrate Phylum Mollusca ~

Class Cephalopods

  • squids and octopuses
  • internal mantel
invertebrate phylum annelida
~Invertebrate Phylum Annelida ~
  • Segemented worms
  • Body divided into segments(sections)
  • Live in water or underground
  • have a nervous and circulatory system
invertebrate phylum annelida33
~Invertebrate Phylum Annelida ~
  • Class Earthworms
  • eat soil and breakdown organic matter, wastes provide nutrients to soil
invertebrate phylum annelida35
~Invertebrate Phylum Annelida ~
  • Class leeches
  • parasites that feed on blood of other animals
invertebrate phylum echinodermata
~Invertebrate Phylum Echinodermata ~
  • Hard, spiny skin
  • Live in salt water
  • Radial symmetry
  • name means ‘spiney skinned’
  • endoskeleton
invertebrate phylum echinodermata37
~Invertebrate Phylum Echinodermata ~
  • Examples: seastar, sea urchin, sand dollar and sea cucumber
invertebrate phylum arthropoda
~Invertebrate Phylum Arthropoda ~
  • Body divided into sections/segments
  • Exoskeleton
  • Jointed legs
  • well developed nervous system
  • largest group of organisms on earth
invertebrate phylum arthropoda39
~Invertebrate Phylum Arthropoda ~
  • 3 subphylums:
  • Classified into classes according to the number of legs, eyes and antennae they have.

~Invertebrate Phylum Arthropoda ~


is divided into 3 classes

Arachnida – spiders, scorpions, ticks, mites

Merostomata – horseshoe crabs

Pycnogonida – sea spiders

invertebrate phylum arthropoda subphylum chilicerata
~Invertebrate Phylum Arthropoda ~ Subphylum Chilicerata
  • Class – Arachnida
  • no antennae
  • 4 pairs of legs
  • 2 body regions - cephalothorax & abdomen
  • spiders, scorpions, mites & ticks
invertebrate phylum arthropoda subphylum chilicerata43
~Invertebrate Phylum Arthropoda ~ Subphylum Chilicerata
  • Class Merostomata
  • Horseshoe crabs
    • Ancient group of species
    • Changed little over 350 million years
    • Aquatic, mostly found on Atlantic & gulf coasts of United States.
invertebrate phylum arthropoda subphylum crustacea
~Invertebrate Phylum Arthropoda ~ Subphylum - Crustacea

5 Classes

  • Aquatic ones have gills
  • 2 antennae
  • 2 body regions or segmented
  • Shrimp, lobsters, crabs, barnacles, isopods
  • Many species taste delicious in butter
Subphylum Uniramia: 3 classes
  • Class Insecta (insects)
  • Class Chilopoda (Centipedes)
  • Class Diplopoda (Millipedes)
invertebrate phylum arthropoda subphylum uniramia
~Invertebrate Phylum Arthropoda ~ Subphylum Uniramia
  • Class Insecta
  • no antennae
  • 3 pairs of legs
  • 2 body regions - head, thorax & abdomen
  • grasshoppers, ants, butterflies, bees
invertebrate phylum arthropoda subphylum uniramia51
~Invertebrate Phylum Arthropoda ~ Subphylum Uniramia
  • Class Diplopoda
  • Millipedes
  • segmented animals
  • Have 2 pairs of legs per segment
  • Primarily herbivores & decomposers
invertebrate phylum arthropoda subphylum uniramia53
~Invertebrate Phylum Arthropoda ~ Subphylum Uniramia
  • Class Chiopoda
  • Centipedes Usually terrestrial carnivores
  • Have 1 pair of antennae
  • Are often poisonous, using modified front claws to immobilize prey
phylum chordata subphylum vertebrata
~ Phylum Chordata ~ subphylumVertebrata

5 classes

  • Fish
  • Mammals
  • Reptiles
  • Amphibians
  • Birds