Cell walls, such as those in plants and in some bacteria.
Lipids are macromolecules which provide insulation.
<span>A macromolecule is a large molecule. There are four groups of macromolecules: carbohydrates, proteins, nucleic acids and lipids. Lipids consist of glycerol and fatty acids and are constructed from fats, oils, waxes, phospholipids and steroids. A lipid's function is to insulate the body and provide warmth in cold conditions. It can be concluded that a person with very little body fat gets very cold easily and a person with a lot of body fat gets very warm very quickly.
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Answer: i don't really think they are but whales can kill dolphins by sitting on them so yeah i guess their a little afraid
Explanation:
<span>When all the waves are seen together, they make white light. Ultraviolet (UV) light-- is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, in the range 10 NM to 400 . ... X- Rays -- have smaller wavelengths and therefore higher energy than ultraviolet waves.</span>
