, Download 1
...SYSTEM From the practical conducted, it is clear that blowflies lay their eggs on decaying material, such as the carcasses of dead animals. Larvae hatch from eggs and this is a temperature dependent process. Larvae – the maggots - have an outer cuticle and an inner epithelia basement membrane (Sawin, Harris, Campos, & Sokolowski, 1994, p. 353). The cuticle is 5µm thick in young larvae (36 hours, first instar), 25µm in 60-hour-old larvae (second instar), and 40µm in last (third) instar larvae. Maggot behavior is linked to instar development; for example, in the first and second instar the maggots stay close together and feed, but in the third instar, they move away from each other... ? THE NERVOUS SYSTEM...