Answer:Image result for What best describes the head end of a phospholipid?
A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.”
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To view the mitochondria you will need a light microscope. The mitochobdria is to small to see with a light microscope. The organelles are found in tje cheeck of an onion cell bit are to small to see.
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I'm not too sure but I think it's the need for medical plants
I would have chosen the need for oil, but I can't think of the way oil affects plants
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carries the genetic information copied from DNA in the form of a series of three-base code “words,” each of which specifies a particular amino acid.
