Posted by Lauren on Wednesday, December 14, 2011 at 8:10pm.
substances that can prevent but not cure a disease????
I did the others with my dad.
is it vaccine?????
Science 7R - Ms. Sue, Wednesday, December 14, 2011 at 8:10pm
Science 7R - Lauren, Wednesday, December 14, 2011 at 8:13pm
Because i was thinking of that and ask if I was right.
PS: don't wrry about the other post i post about the other question my dad help me.
Science 7R - Ms. Sue, Wednesday, December 14, 2011 at 8:19pm
Great! I'm glad you and your dad are working together on this assignment. :-)
Science 7R - Lauren, Wednesday, December 14, 2011 at 8:24pm
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