The tapeworm Echinococcus granulosis has its life cycle in how many different host organisms?

The tapeworm Echinococcus granulosus has its life cycle in two different host organisms. The definitive hosts are dogs or other carnivores where the adult worms live in the intestine. The intermediate hosts are usually sheep and other livestock, and occasionally humans, where the larval stages develop.

The tapeworm Echinococcus granulosus has its life cycle in two different host organisms. The definitive host is typically a dog or other carnivore, where the adult worm resides in the intestine. The intermediate host is usually a sheep or other livestock, where the larval stages develop in the liver, lungs, or other organs.