Submitted by examrobotsa on Thu, 01/01/1970 - 05:30 Cockroach, Housefly and Mosquito are insects because they havechitinous exoskeleton and body divided into head and cephalo-thoraxes six legs, two pairs of antennal and body divided into head, thorax and abdomensegmented body, six legs and body divided into head, thorax and abdomenthree pairs of legs, one pair of antenna] and flame cellsstats: 0,120,168,120,40,120,8