A wolf kills a deer that is infected with ________ of Echinococcus granulosis in its liver and eats it. After consuming the deer, the wolf's intestine becomes filled with a number of ________ produced from scoleces. These eventually release eggs into the wolf's intestines, which are released in its feces.
A.) hydatid cysts; cercariae
B.) proglottids; hydatid cysts
C.) hydatid cysts; proglottids
D.) cercariae; cysticerci
E.) cysticerci; proglottids

C

When we say that a human is a dead end host for a parasite, we mean
A.) the infected human is highly unlikely to transmit the infection to another organism.
B.) humans lack the correct anatomical structures for the parasite to exit the body.
C.) that the human isn't capable of being infected by the parasite.
D.) the human will die from the parasitic infection before being able to transmit it to another organism.

A

In the roundworms, the females have 1-2 hardened ________ on their posterior ends
A.) genital pores
B.) scoleces
C.) proglottids
D.) cercariae
E.) spicules

E

Infecting more than 2 billion people worldwide, ________ are the most common causes of chronic infectious diseases.
A.) intestinal roundworms
B.) protozoa
C.) intestinal tapeworms
D.) fungi
E.) algae

A