Non chordata related problem
Consider following features:
(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.
(1) Annelida, Arthropoda and Chordata
(2) Annelida, Arthropoda and Mollusca
(3) Arthropoda , Mollusca and Chordata
(4) Annelida, Mollusca and Chordata
Model Answer:
1. True segmentation is seen in the Phylum Annelida and Chordata. Arthropods too show segmentation restricted to upper side of their body. In chordates, segmentation is pertaining to muscular part as it shows Circular & longitudinal muscle perpetuates throughout the body.
Author
Vikas Kumar
Dr. Vikas did Masters, M. Phil. & Ph.D. from Delhi University. He was one of the gold medalists in the university during Masters in Zoology. He has published many research papers in drug designing & development. He is Assistant Professor in the University of Delhi. He believes in educating and not just teaching his students and enable them by inculcating scientific temperament to solve challenges in the field of Animal sciences.
Vikas Kumar
Nov 27th, 2019