Animals
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Animals

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Animals Animals Presentation Transcript

  • LIVING THINGS CLASSIFICATION THE FIVE KINGDOMS
  • ANIMAL KINGDOM CLASSIFICATION
  • ANIMAL KINGDOM CLASSIFICATION INVERTEBRATES: animals without a backbone •Sponges •Cnidarians. •Molluscs. •Annelids. •Arthropods. •Echinoderms.
  • ANIMAL KINGDOM CLASSIFICATION VERTEBRATES: animals with a backbone •They belong to phylum chordata ASCIDIAS: Chordates but not vertebrates
  • ANIMAL KINGDOM CLASSIFICATION Vertebrates characteristics: •Skeleton with spinal column. •Digestive system. •Excretory system. •Sexual reproduction. •Nervous system with brain and spinal chord.
  • SPONGES SPONGES characteristics: •They live attached to an underwater surface •Their body is covered with pores. •They feed filtering water. Water goes out through the osculum.
  • CNIDARIANS Gastrovascular cavity Mouth-anus Characteristics: •Digestive cavity with a single opening (mouth-anus). •Tentacles to catch preys. Tentacles
  • ANNELIDS Characteristics •Bodies are long and cylindrical. •Bodies divided in segments (metameres). •They breathe through the skin. (cutaneous respiration). •Some of them have distinct sexes but other are hermaphrodites (sexual reproduction) Earthworms Leeches
  • ANNELIDS
  • MOLLUSCS Characteristics •External layer called mantle. Inside they have the visceral mass with organs. •Internal or external shell. •Muscular foot. •Radula: a tonge with teeth for biting and chewing.
  • MOLLUSCS Types •Gastropods: •Spiral shell or no shell (slugs). •Head with four tentacles. •Mainly herbivores. •Cephalopods: •Head with eyes and mouth. •Tentacles to catch prey. •Carnivores. •Bivalves: •No head. •Two shells. •Filter feeders.
  • Arthropods Characteristics •Body divided into segments. •Jointed limbs (articulated limbs). •Exoeskeleton with muscles for movement. •Breathe through trachea or gills.
  • Arthropods Characteristics •Metamorphosis (in some cases). •Moult to grow.
  • Arthropods Types: •Myriapods: Separated head and body (trunk) formed by many metameres with legs. •Arachnids: Body divided in two parts, cephalotothorax (4 pair of legs)and abdomen. •Crustaceans: head and cephalothorax (usually 5 pairs of legs). •Insects: Head, thorax (3 pairs of legs) and abdomen.
  • FISH Characteristics: • Adapted to live in water because: •They breathe trough gills. •They have fins to move. •Their shape is fusiform. • Their swim bladder fills up with air allowing them to float. • They are poikilotherms: don´t control their body temperature. •They are mainly oviparous.
  • FISH Types: Cartilaginous: skeleton made of cartilage. Bony: Bony skeleton.
  • Amphibians Characteristics: • They undergo metamorphosis: •Larvae breathe through gills and use a tail as a caudal fin to swim. •Adults develop limbs, and breathe through lungs and the skin (cutaneus respiration). •Poikilotherms. •They are oviparous and lay eggs in water.
  • Amphibians Types: Anurans: lose the tail when adults. Four limbs of different sizes. Uroldels: don´t lose the tail when adults. Four limbs of the same size.
  • Reptiles Characteristics: Adapted to live on land: •Breathe through lungs. •Body covered with scales that prevent from dehydration. •Lay eggs covered with a thick layer that allow them to survive on land. Poikilotherms.
  • Birds Characteristics: Adapted to fly: •Wings and feathers. •Hollowed bones. •Sternum highly developed. •Air sacs. Homeotherms.
  • Mammals Characteristics: Females with mammary glands. Body covered with fur. Homeotherms. Most of them viviparous.
  • Mammals Types: Monotrems: oviparous, but with mammary glands and fur. Marsupials: viviparous. Babies are born underdeveloped. Feed on mammary glands that females have in a pouch. Placentals: vivipaous, babies are born completely developed