Question

Inside pig, hexacanth larva give rise to
A. Cercaria
B. Bladder Worm
C. Cysticercus
D. Both B and C

Answer 1

Hint: The development from the infant stage to a complete adult takes a long time in humans, but In some organisms, it is a matter of a short time. They surpassed this period in a short time. They become a complete adult after the conversion. Many hormones participate in this process.

Complete answer: The Taenia solium is found in areas where pork is eaten. It is a tapeworm. It has a pig as its secondary host while the humans are the definite host. Through human feces, it enters the pig fodder. The uncooked pork can have the tapeworm in it with tapeworm cysts.
Pigs ingest the tapeworm eggs, this will develop into larvae, then into oncospheres, and at last into tapeworm cysts. These cysts will grow in the human adult’s small intestine causing infection.
Option A: Cercaria: It is the larval stage of a fluke typically a parasitic fluke.
Option B: Bladder Worm: The hexacanth will transform into cysticercus and this cysticercus upon taking nutrition converts into bladder worm, which is greater in size and is matured
Option C: Cysticercus: It is the first transformational result of the hexacanth in Taenia. It occurs in the voluntary muscles.
So the answer is option D: Both B and C.

Note: Taeniasis is the infection caused by them. It gives mild symptoms like nausea, constipation, etc. When the fully grown tapeworm of about 8 weeks develops, this infection starts to give symptoms. Cysticercosis is another infection by eggs of taenia. It ruptures the intestine of the host, thus the larvae travel to the tissues of the host.