The life cycle of Ascaris lumbricoides starts when fertilized ... depending on whether the female worm has mated.

but for an egg to become and egg-producing worm, they need to infect a variety of intermediate hosts, and pass though specific developmental stages. So far, there is no single compilation of cestode ...

Some earthworms are parthenogenetic, meaning that females can reproduce asexually. LIFE CYCLE: Little is known about the life cycle of this species. In general, juvenile earthworms emerge from their ...

Infected people and dogs had to be prevented from tainting water sources. The goal was to break the worm’s life cycle — and therefore eliminate the parasite itself — in each endemic ...