Which of the following is major shortcoming of swimming in South American waters inhabited by candirus?
a. Their behaviour to lead into the urethra of an animal urinating while submerged in water.
b. Their behaviour to lead into the anus of an animal while submerged in water.
c. Their behaviour to lead into the nose of an animal while swimming in water.
d. Their behaviour to lead into the ears of an animal while swimming in water.
Answer: a. Their behaviour to lead into the urethra of an animal urinating while submerged in water.
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