Biology, asked by janjor, 1 year ago

differentiate phylums based on special character​

Answers

Answered by Lumineers
1

Explanation:

  • porifera : choanocyte cells
  • cnidaria : cnidoblast cells
  • ctenophora: lasso cells and bio luminescence
  • platyhelminthes: flame cells and regeneration capability
  • ascelhelminthes: renette cell
  • annelida:nephridia; metameric segmentation,true coelom,closed circulatory system and pumping heart first appeared
  • arhtropoda: successful Invaders of terrestrial environment among invertebrate due to 1)cuticle 2)appendages 3) wings
  • mollusca: secretion of calcareous shell
  • echinodermata: water vascular system with tube feet
  • hemichordata: connecting link between non chordata and chordata. notochord like structure called buccal diverticulum is found in buccal cavity
  • chordates:

presence of

  1. notochord
  2. dorsal hollow nerve cord
  3. paired pharyngeal gills
  4. post anal tai

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