A. Introduced species can cause exponential biological magnification
Answer: 1 is a, 2 is b, 3 is c, and 4 is d.
Explanation:
The association of a DNA or RNA strand to its complement is one of the basic research tools of the molecular biologist. Binding of a compliment can identify target regions of DNA or RNA, and can be used to disrupt the process of DNA manufacture. If the complementary DNA is labeled with a compound that fluoresces, then the binding of the fluorescent probe can actually be visualized using a microscope<span>. This permits the "real time" examination of </span>DNA synthesis.<span>
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Answer:
Heterogeneous mixtures are substances not mixed together.
Explanation:
I hope that is right
