Answer:
The correct answer is two layers of phospholipids,with their polar hydrophilic heads facing away from each other.
Explanation:
The plasma membrane of a cell contain lipid bilayer.Each monolayer contain phospholipids.The hydrophobic tails of the phospholipid of both the monolayers faces each other in the hydrophobic region where as the hydrophilic heads of the phospholipid molecules of both the monolayers are oriented away from each other.
Light microscope<span> uses </span>light<span> to illuminate specimens and glass lenses to magnify images whereas an </span>electron microscope<span> uses a beam of </span>electrons<span> to illuminate specimens and magnetic lenses to magnify images.
The resolution of electron microscope is very high is compared to that of light microscope. It means, for very small objects like nucleus of cell, virus, we can use electron microscope instead of light microscope.
Hope this helps!
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Answer:
<h2><u><em>Gills</em></u></h2>
Explanation:
Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers on both sides of the pharynx (throat).
Answer:
F. Is fatty acid molecule.
Explanation:
It's unsaturated fatty acid.
Fatty acid consists of a straight chain of an even number of carbon atoms, with hydrogen atoms along the length of the chain and at one end of the chain and a carboxyl group (―COOH) at the other end.
It is that carboxyl group that makes it an acid (carboxylic acid).