Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  •  Which of the following groups possesses the notochord either throughout or at any stage of their life cycles? Option: 1  Hemichordate

 Which of the following groups possesses the notochord either throughout or at any stage of their life cycles? 

Option: 1

 Hemichordates 


Option: 2

 Sponges 


Option: 3

 Platyhelminthes


Option: 4

 coelenterates 


Answers (1)

best_answer

 

 

 

Notochord: 

  • It is the rod-like cartilaginous structure that is present dorsally during the development of embryos in animals. 
  • It is derived from the mesoderm. 
  • Those animals that do not possess notochord at any stage of their life cycles are called non-chordates. They are also called invertebrates. For example, sponges, coelenterates, Platyhelminthes etc.
  • Those animals that possess the notochord either throughout or at any stage of their life cycles are called chordates. For example, hemichordates, urochordates etc.
  • In some chordates, the notochord is replaced by a bony vertebral column. Such animals are called vertebrates. For example, mammals.

 Sponges, Platyhelminthes and coelenterates do not possess notochord at any stage of their lives. 

Posted by

Riya

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

Karnataka AYUSH UG 2025: Round 3 stray vacancy registration begins; option entry ends in two days
anam-khan

Maharashtra NEET UG 2025: Just 114 marks enough for private MBBS seat; govt colleges close at 500
anam-khan

UP NEET AYUSH 2025: Stray vacancy round 3 schedule out; registration ends in two days

Latest Question