LSAT 103 | Section 4 | Reading Comprehension: Q19

RC Question 19 Explanation

DISCUSSION: The research team’s explanation is described in paragraph three.

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1. We have no idea if other marine animals also died. Also, animals of another species could be affected by the same mechanism yet not die.
2. The researchers never said where P. brevis usually blooms. The problem with this bloom was the there was an unusually large amount of algae.
3. This gets the researchers’ argument backwards. They say that, in this case, brevetoxin poisoning led to bacterial infection.
    
   That doesn’t mean that bacterial infection is always caused by brevetoxin. There could be bacterial infections that have nothing to do with brevetoxin.
4. Lines 32-37 show that brevetoxin led to emaciation (losing blubber). It was this emaciation that led to the dolphins releasing their PCBs.
5. CORRECT. Lines 35-37 support this. If PCB isn’t more dangerous when released from blubber, then it’s hard to see why releasing it from blubber is a problem.