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
Excision is the right answer :)
It is the total mass of organisms in the given area
Sulfur<span> is an important structural atom in most </span>proteins<span> as </span>sulfur amino acids. It defines its structure. <span>The </span>sulfur<span>-containing </span>amino acids<span>, </span>can<span> be converted into each other but neither </span>can<span>be synthesized in humans. Hope this answers the question. Have a nice day.</span>
The body was preserved because the body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found.
<h3>How is a body preserved?</h3>
It is common to observe that bodies are often preserved at a very low temperature hence the body was preserved because the body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found.
The reason why the AIDs virus which contains RNA, to insert into the DNA of a host of T-cells after the AIDs virus enters the cell is because of receptor proteins located on the surface of the virus.
The organism that lacks the ability to maintain their own metabolic pathways and can only reproduce inside of a host cell are the viruses.
The chemicals released by one type of immune cell to directly activate another type of immune cell are the cytokines.
Learn more about cytokines:brainly.com/question/12199920
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