preptest 10/section 4/questions 20

schand
Posts: 67
Joined: Tue Feb 02, 2010 4:38 pm

preptest 10/section 4/questions 20

Postby schand » Mon May 10, 2010 8:26 pm

Why is the answer E and not B? Any help would be appreciated!

jamesieee
Posts: 58
Joined: Thu Feb 12, 2009 7:14 pm

Re: preptest 10/section 4/questions 20

Postby jamesieee » Mon May 10, 2010 9:40 pm

(B) is not the correct answer because it is a mistaken negation. The stimulus argues that if the bees go extinct, the plants could also go extinct. This does NOT mean that if the bees do not go extinct, the plants do not go extinct. A -> B is not ~A -> ~B.

(E) is the correct answer because the stimulus does mention that some bees can only feed off of one type of plant. So if that type of plant is destroyed, then the bees could go extinct.

schand
Posts: 67
Joined: Tue Feb 02, 2010 4:38 pm

Re: preptest 10/section 4/questions 20

Postby schand » Thu May 13, 2010 11:10 am

Thanks!




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