The answer to the biology question being presented above would be 'sexual reproduction'. Genetic variability is the most important result of sexual reproduction. In this variability, the genes are varied through sexual union and reproduction.
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Answer:</h2>
The weak acid <u>D) acetic acid</u>.
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Explanation:</h2>
Acid are the substance which has pH below 7 and releases 
ions when they are treated with aqueous solution. Based upon the rate of dissociation, the acids are classified as strong acids which has high dissociation rate and weak acid with low dissociation rate.
Acetic acid is a organic acid with the formula 
. It is a colorless acid and also named as ethonoic acid.
Among the given list of acid in the option which includes, Sulfuric acid, Nitric acid, Hydrochloric acid, and Acetic acid, first three are strong acids, whereas the lastly mentioned is a weaker one.
Answer: Rosalind Franklin
Rosalind Franklin used X-ray diffraction to determine the structure of DNA molecules. One of her best X-ray pictures is numbered Photo 51 and is shown in Fig.
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