Which of the following features is not present in the Phylum Arthropoda?
Correct answer: A. Parapodia
- A. Parapodia
- B. Jointed appendages
- C. Chitinous exoskeleton
- D. Metameric segmentation
Explanation
Parapodia are flattened, fleshy, vertical flap like outgrowths of body wall found in annelids on lateral sides of trunk segments. These are hollow structures enclosing coelom which is continuous with that of trunk segments. These serve the dual purpose of locomotion and respiration.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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