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Which of the following best describes the numbers of blood vessels usually found in the umbilical cord?
Biological Molecules
Organic compounds essential to life, including carbohydrates, lipids, proteins, and nucleic acids, forming the structure and performing the functions of living organisms.
Fatty Acids
Long-chain hydrocarbons that contain a carboxylic acid group at one end. They are an important component of lipids in living organisms.
Lipids
A broad group of naturally occurring molecules that include fats, waxes, sterols, and fat-soluble vitamins among others, used for energy storage and as structural components of cell membranes.
Organic Acids
Organic acids are a group of acidic compounds that contain carbon and are found in many plants and animals, essential in various biochemical processes.
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