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The exoskeleton of arthropods is made of
renin
suberin
Chitin and proteins
cellulose
The exoskeleton will have thickened areas in which the chitin is reinforced or stiffened by materials such as minerals or hardened proteins.
In which of the following parts the internal organs are present in molluscs?
foot
hump
head
tail
The internal organs of molluscs are present in the hump.
Spiny skinned organisms include
Phylum Mollusa
Phylum Annelida
Phylum Arthropoda
Phylum Echinodermata
Phylum Echinodermata includes spiny skinned organisms.
The locomotory organs of Echinoderms are called
Parapodia
Tube feet
Pseudopodia
setae
The locomotory organs of Echinoderms are called tube feet.
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