Origin of life cycle
Examples from the Web for life cycle
On the other hand, the life-cycle is, in general, fairly simple.
In the vast majority of Gregarines, however, the life-cycle is limited to gametogony and sporogony.
There is some doubt as to the different stages in the life-cycle of this species.Freshwater Sponges, Hydroids & Polyzoa|Nelson Annandale
But the free inoculations had begun many years ago, and the life-cycle moved at an accelerated pace here.This Crowded Earth|Robert Bloch
The life-cycle of Moniliformis moniliformis (Bremser, 1811), Acanthocephala.The Biotic Associations of Cockroaches|Louis M. Roth