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
The head of a tapeworm intestinal parasite is known as the
________.
A.) scolex
B.) cysticerci
C.) hydatid cyst
D.) spicule
E.) proglottid
A