Answer:
a mixture is a material made up of two or more different substances which are physically combined.
Well you have to do it because nobody on here has the answer choices but you
U would subtract 90 minus 45 which equals 45
I think that the answer is probably b-the liquid water particles turn into water vapor that spreads in the air
Answer:
it is a membrane-linked glycoproteins that connects with other cells which are also called transmembrane
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