This definition can be contrasted with that proposed by life-span developmental psychologists: Development is a life-long process beginning at conception and ending at death (Honzik, 1984, p. 309). Development is thus extended to include the whole of life.
A cockroache can live up to 10 days without its head. In fact it doesn't die of suffication but of dehydration.  a cockroach can live up to a week without it's head because â¦it's brain is in its body. 1 person found this useful.
The American cockroach has three life stages: the egg, a variable number of nymphal instars, and the adult. The life cycle from egg to adult averages about 600 days and the adult life span may be another 400 days.The nymphs emerge from the egg case after about six to eight weeks and mature in about six to twelve months.he life cycle from egg to adult averages about 600 days and the adult life span may be another 400 days. The nymphs emerge from the egg case after about six to eight weeks and mature in about six to twelve months.