Consider the following features:

a. Organs system level of organization

b. Bilateral symmerty

c. True colemates with segmentation of body

Select the correct option of animal group which possess all the above characteristics.

  • Option 1)

    Annelida, Arthropoda and Chordata

  • Option 2)

    Annelida, Arthropoda and Mollusca

  • Option 3)

    Arthropoda, Mollusca and Chordata

  • Option 4)

    Annelida, Mollusca and Chordata

Answers (1)

 

Metameric Segmentation -

Body externally and internally divided into segments with a serial repetition of at least some organs.

- wherein

Eg. Annelia, Arthropoda and chordate.

 

 

Annelida, Arthropoda and Chordata are the phyla that show segmentation. They have organ sysyem level of organization, bilateral symmerty and true coelom. Molluscans also share these feratures but do not show segmentation.

 


Option 1)

Annelida, Arthropoda and Chordata

Option 2)

Annelida, Arthropoda and Mollusca

Option 3)

Arthropoda, Mollusca and Chordata

Option 4)

Annelida, Mollusca and Chordata

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