It allows the scientist to determine the effect of the changed variable , it also allows samples and organisms to be tested under comfortable conditions
Answer:
c. Cold front
Explanation:
Cold fronts are bodies of air with cooler temperatures than the surrounding air. The general effect cold fronts have is that they cause a drastic change in the weather. This is because when they interact with the warmer air, they produce precipitation.
The storm most likely, came with an advancing mass of cold air, which caused the dramatic drop in temperature that was experienced. This is what is known as a cold front.
<span>It is usually the + strand and the - strand. It can be quite a bit more complicated.</span>
In eukaryotic cells the DNA is in the nucleus.
but in prokaryotic cells, it's in the
cytoplasm
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