Hello there!
The answer is A, sediments. Mud, silt and clay can all be found at the bottom of a river, where sediment is formed.
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To keep people at bay and to make sure the rules and laws are followed
Answer:
Types of biological macromolecules
Biological macromolecule Building blocks Examples
Lipids Fatty acids and glycerol Fats, phospholipids, waxes, oils, grease, steroids
Proteins Amino acids Keratin (found in hair and nails), hormones, enzymes, antibodies
Nucleic acids Nucleotides DNA, RNA
Explanation:
Some you wouldn't see by stepping outside, but it gives you a general understanding of what you should be looking for.
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