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Sources of Deep Ocean-Basin Sediments, continued Chemical Deposits When substances that are dissolved in ocean water crystallize, these materials settle to the ocean floor as potato-shaped lumps of minerals called nodules. nodule a lump of minerals that is made of oxides of manganese, iron, copper, or nickel and that is found in scattered groups on the ocean floor Other minerals, such as phosphates, are also carried in the ocean floor before they crystallize and form mineral deposits on the ...
Testosterone is a sex steroid that is made from cholesterol, meaning its structure has four rings that are stuck together. Cholesterol is the origin of all naturally occurring steroid hormones. The ring structure of cholesterol makes it and testosterone oily, meaning they do not dissolve in water but form clumps. However, they do dissolve in other oily liquids. They are called nonpolar molecules -- water is polar, fats and oils are not.