A compound is always a substance because it's made out of two or more atoms bonded together. Now a substance isn't always a compound because it takes two or more elements to create a compound in a chemical reaction, ans substances can contain only one element. In other words a substance can be constructed of one type of atom. Some substances that aren't compounds are: gold and baking soda.
The correct answer is animal waste and fertilizers
The chromosomal DNA contains genetic information and plasmid DNA contains extra information.
Answer:
it b
Explanation:
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chemistry of the nitrogenous bases are really the key to function the DNA<span>. something called complementary base pairing. cytosine can forms three hydrogen </span>bonds<span> with guanine, and </span>adenine<span> can form two hydrogen </span>bonds<span> with thymine.</span>