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  • Cephalothorax is found inOption: 1 AnnelidsOption: 2 Sponges<div class='qna-o

Cephalothorax is found in

Option: 1

Annelids


Option: 2

Sponges


Option: 3

Platyhelminthes


Option: 4

Arthropods


Answers (1)

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Phylum Arthropoda and Body Plan of Arthropoda -

  • The term ‘Arthropoda’ is derived from Greek words arthros that means jointed and podos that means leg. 
  • These animals have jointed appendages.
  • It is the largest phylum of the Kingdom Animalia with a documentation of 85% species.
  • They have a segmented body. 
  • The segments consist of specialised body organs. Such segments are called tagmata (sing. tagma).
  • They are triploblastic and haemocoelomic.  
  • They occupy terrestrial, aquatic and aerial habitats.

Body Plan of Arthropoda:

  • They possess a tough chitinous exoskeleton. These are the first animals to develop voluntary muscles. The degree of segmentation in animals varies.

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Crustaceans belonging to arthropods have cephalothorax, a condition wherein, head and thorax are fused.

Posted by

Ritika Jonwal

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