Answer:
B) serendipitous
Explanation:
Serendipitous discovery is a type of discovery that occurs when unplanned events about things that are surprising are made, rather than being discovered through planned investigation. This type of discovery is mostly accidental or by chance. Casey’s idea that emanated from the accidental discovery of a problem computer engineers have, which led to the idea of coming up with a new product that is beneficial is simply an example of serendipitous discovery.
"All carbohydrates are made up of units of sugar (saccharride). Carbohydrates containing only one unit of sugar (called "monosaccharides") or two sugar units of sugar (called "disaccharides") are known as "simple sugars" or "simple carbohydrates."
II hope this'll help you out :)
D because it is and you know it
Alleles can disappear from a population through natural selection. This relates to the most fit phenotype because the breed with the desirable trait, or the most fit, will live and produce off spring. Eventually the less desirable trait and its corresponding allele will disappear after multiple generations pass. If the environment does not change alleles of non desirable traits will disappear. <span />