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Among the following the characteristic feature not present in Arthropoda is
Option: 1
Jointed appendages
Option: 2
Unsegmented body
Option: 3
Moulting
Option: 4
Articulated exoskeleton
Answers (1)
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.
-
Arthropods have a segmented body.
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