ICSE Class 9 Biology
Question 1 of 11
Diseases: Cause and Control — Question 4
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Question Assertion (A): Taeniasis is the disease caused by tapeworms. It spreads by eating infected pork or beef.
Reason (R): Pigs or cows accidentally ingest the eggs of tapeworm which later on form larval stages. These larvae settle in the muscles of pigs or cows.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Both A and R are True.
Reason — Taeniasis is caused by: Taenia solium (from infected pork) or Taenia saginata (from infected beef). Humans get the disease by eating undercooked or raw meat containing larval cysts of the tapeworm.
The tapeworm eggs, passed in human feces, can contaminate food or water sources. Pigs or cows ingest these eggs, which develop into larvae (cysticerci) in their muscles.