refer to the taxonomic groups that are consistently utilized in organism hierarchy classification. Sub-phyla, subclasses, suborders, subfamilies, subgenera, and variations are a few examples of .
:It is challenging to classify newly discovered creatures into established categories. As a result, the prefixes "super" and "sub" have been added to the existing categories, such as sub-kingdom, sub-phylum, super class, etc. These are categorized as . This has also made the placement of different taxa more soundly and scientifically.
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The correct answer is option (D) Lipid molecules are nonpolar because they repel water molecules, which are polar.
Lipids are organic compounds made up of fatty acids and glycerol. A glycerol is a organic molecule with three hydroxyl groups and a fatty acid consists of a long hydrocarbon chain attached to a carboxyl group.
Lipids are hydrophobic, nonpolar molecules with no charge on their ends. Waxes are long chain nonpolar lipids. The water repelling property of the waxes prevent the water sticking to it and appear as water beads on its surface. The hydrophobic hydrocarbon tail of the fatty acids are hydrophobic in nature making them repel water. The presence of wax on the surface of the plants and animals protects them from dehydration.
Thus, the nonpolar property of lipids make it insoluble in the polar solvents like water as there is no interaction or sharing of electrons between them.
The scrotum is a sac of skin that hangs from the body at the front of the pelvis, between the legs. It sits next to the upper thighs, just below the penis. The scrotum contains the testicles
The answer is all of the above
