<span>A. economics class,hair cut,life insurance
The list obviously contains all services while other choices contain products.</span>
Additionally, phospholipids, which make up cell membranes, include choline. Lecithin, a substance that is frequently used as a food additive, is an illustration of this kind of substance.
<h3>What is the purpose of choline?</h3>
A vitamin called choline can be found in a variety of meals. It regulates memory, mood, muscular control, and other activities in your brain and neurological system. Choline is also necessary for forming the membranes that enclose the cells in your body.
<h3>Which of the following elements plays a crucial role in the transfer of fatty acids?</h3>
Carnitine, The growth of mealworms depends on carnitine. The transport of fatty acids from the bloodstream to the active sites of fatty acid oxidation within muscle cells is a key function of carnitine in all living things.
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Hierachy is a series of ordered groupings
Answer
D. It keeps chemicals from entering the watershed
Explanation
Agricultural run off can be described as the disposal of artificial fertilizers , pesticides, herbicides, sewages etc into which drained off into oceans , lakes and ponds with water .
Agricultural run off is recycled , then water will be less polluted , the water therefore be not harmful for usage by the plants/crops & it will make the drained water less contaminated for the Aquatic living in the ocean , rivers , lakes or ponds
An average normal range is between 4,500 and 10,000 white blood cells per microliter
