Final answer:
In the organs of the intermediate host Echinococcus granulosus develops into hydatid cysts, not larvae, adult worms, or eggs. These cysts can contain millions of tapeworm heads and are usually found in the lungs or liver.
Step-by-step explanation:
The Echinococcus granulosus, a small tapeworm found in dogs, has a life cycle that involves intermediate hosts such as sheep, pigs, goats, and cattle. When larvae of E. granulosus are ingested by an intermediate host, they penetrate the intestinal wall and access the circulatory system.
They then form hydatid cysts in internal organs of the intermediate host, most commonly in the lungs and liver. These cysts grow slowly and can contain millions of tapeworm heads.