The answer you are looking for is Natural Selection.
The answer I believe is number 1
Answer:
DNA is tightly packed up to fit in the nucleus of every cell. As shown in the animation, a DNA molecule wraps around histone proteins to form tight loops called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin. Chromatin, in turn, loops and folds with the help of additional proteins to form chromosomes. Condensing DNA into chromosomes prevents DNA tangling and damage during cell division.
Explanation:
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Answer: 50 joules and 100 joules assuming there is no friction.
Explanation:
The Aromatic hydrocarbon is the most common in nature.
