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Biology Project:
CHORDATA
By: VAIBHAV PATEL
SUPREET PANDA
ANSHUMAN NAYAK
Phylum Chordata
 Animals possessing notochord either thought life or during early
embryonic life. The notochord is stiff ...
Protochordata Vertebrata
Class Cyctostomata
 E.g.: Lamprey (petromyzen) & Hagfish (myxine)
 Parasites on fishes
 Elongated body have 6-14 pair o...
Class Chondrichthyes
 Marine fishes
 Cartilaginous Endoskeleton
 5 pairs of gills slits without
gill cover
 No swim bl...
Chondrichthyes Osteichthyes
Class Amphibian
 2 phases in life cycle: adult & larvae
 Larva is aquatic & adult is terrestrial
 Require water for bre...
Condt……
 Eg :- toad
 Frog
 Salamander
 Limbless amphibian
Class Reptilian
 Crawling animals
 Body covered by dry, cornfied skin that contain epidermal scales
 Post and tail pres...
Class Aves
 Streamlined body
 Body has head, trunk & a pair of limbs
 Body covered with feather
 Forelimbs convert int...
Class Mammalia
 Found in a variety of habitats
 Have milk producing mammary glands
 Skin has hair
 Have 2 pairs of pen...
Phylum Chordata (PowerPoint Presentation)
Phylum Chordata (PowerPoint Presentation)
Phylum Chordata (PowerPoint Presentation)
Phylum Chordata (PowerPoint Presentation)
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Phylum Chordata (PowerPoint Presentation)

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A brief description of phylum chordata of about 10 slides.

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Phylum Chordata (PowerPoint Presentation)

  1. 1. Biology Project: CHORDATA By: VAIBHAV PATEL SUPREET PANDA ANSHUMAN NAYAK
  2. 2. Phylum Chordata  Animals possessing notochord either thought life or during early embryonic life. The notochord is stiff & flexible rod lying ventral to nerve  Are triploblastic  Are coelomate  Are bilaterally symmetrical  Have post anal tail  Closed circulatory system  Have dorsal hollow nerve cord  Paired pharyngeal gill slits  3 sub phylum: 1. Urochordata or Tunicata 2. Cephalochordata 3. Vertebrata.
  3. 3. Protochordata Vertebrata
  4. 4. Class Cyctostomata  E.g.: Lamprey (petromyzen) & Hagfish (myxine)  Parasites on fishes  Elongated body have 6-14 pair of gill slits for respiration  Sucking & circular mouth  No functional pineal eye  Single sex organ discharges gametes in coelomate  Cranium & vertebral column – cartilaginous  Persistent notochord  Heart surrounded by a cartilaginous capsule  Have marine habitat  Migrate into river for spawning  Ammocoete larva hatches out from eggs through metamorphosis that migrate into oceans 
  5. 5. Class Chondrichthyes  Marine fishes  Cartilaginous Endoskeleton  5 pairs of gills slits without gill cover  No swim bladder  Mouth ventral  Viviparous fertilization internal  Some like ray fish have electric organ, sting in sting ray Class Osteichthyes  Fresh / marine fishes  Bony endoskeleton 7 pairs of gill slits with gill cover – operculum  Swim bladder present  Mouth terminal  Oviparous fertilization external  No such electric organ present
  6. 6. Chondrichthyes Osteichthyes
  7. 7. Class Amphibian  2 phases in life cycle: adult & larvae  Larva is aquatic & adult is terrestrial  Require water for breeding, fertilisation is external  2 pairs of limbs  Body divided into head & trunk but no neck present  Moist skin without scales  A tympanum replace the ear  Alimentary canal, urinary and reproductive tracts open into a common chamber called cloaca which opens to the exterior  Heart: 3 chambered, 2 auricles & 1 ventecial  Are cold blooded  Respiration in tapoles: gills, adults: lungs & skin, some breath through gills in adult stage too  Sexes are separate
  8. 8. Condt……  Eg :- toad  Frog  Salamander  Limbless amphibian
  9. 9. Class Reptilian  Crawling animals  Body covered by dry, cornfied skin that contain epidermal scales  Post and tail present  No external ear openings  2 pair of limbs with 5 digits in each  Cold blooded  Heart: 3 chambered  Are carnivorous  Snakes & lizard shed their scales  Internal fertilization  E.g.: Turtle (Chelna), Lizard (Hemidadyles)
  10. 10. Class Aves  Streamlined body  Body has head, trunk & a pair of limbs  Body covered with feather  Forelimbs convert into feather  Bones are hollow  Are warm blooded  Heart: 4 chambered  No teeth in mouth  Alimentary canal has crop & gizzard  Have sharp eyesight  Oil gland present at the base of tail  Are oviparous  Eg :- Crow Parrot Owl
  11. 11. Class Mammalia  Found in a variety of habitats  Have milk producing mammary glands  Skin has hair  Have 2 pairs of pentaductile limbs having nails or claws at the apex  Have external ear  Teeth are present  Heart: 4 chambered, except Crocodile  Diaphragm divided body cavity in upper chest and lower chest  E.g.: Whale (Bulaenoptero), Monkey (Macau), Horse (Eques)

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