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help in june 2009 p1

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mahmoodeltayieb said:
http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0610%20-%20Biology/0610_s09_qp_1.pdf

q17....wth are aphids?!?!


it doesnt matter
ans is B becoz phloem doesnt carry fats
 
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Aphids are herbivorous bugs and are considered as pests they usually feed by sucking the sap
from the phloem vessels in plants anyway
the answer is B cause the sap is a solution of amino acids and sucrose so it cant be
water cause the amino acids and the sucrose are dissolved in the water
however the sap doesn't contain fats
hope i helped u :)
 
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