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eo5 Guest
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Posted: Tue Mar 13, 2007 1:09 am Post subject: Question 19 |
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| Is the antifeedants nontoxic to insects or humans? |
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admin Site Admin
Joined: 08 Dec 2003 Posts: 2168
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Posted: Tue Mar 13, 2007 8:04 am Post subject: |
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Of course, we can only answer your question based on the passage and antifeedants are only discussed specifically in the last paragraph.
The passage states the following clearly: antifeedants are non-toxic and can prevent insects from feeding. Thus, in the context of the whole passage which is about naturally occurring insecticides, the passsage suggests that antifeedants are likely non-toxic to humans and toxic to insects. |
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admin Site Admin
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Posted: Fri Jul 31, 2009 10:32 am Post subject: |
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