A) Compound eyes
B) Poison glands
C) Jointed appendages
D) Metamorphosis
Correct Answer: C
Solution :
The main characteristics of phylum Arthropoda are as follows: (a) Jointed appendages; primitively, one pair to each somite, but number often reduced; appendages often modified for specialized functions. (b) Bilateral symmetry. (c) Exoskeleton made up of chitinous cuticle (d) Complex muscular system (e) Reduced coelom (f) Complete digestive system (g) Open circulatory system. (h) Respiration by body surface, gills, tracheae (air tubes) or book lungs. (i) Paired excretory glands called coxal, antennal, or maxillary glands present in some, homologous to metameric nephridial system of annelids, some with other excretory organs called Malpighian tubules. (j) Nervous system with dorsal brain connected by a ring around the gullet to a double nerve chain of ventral ganglia. (k) Sexes usually separate
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