A Dialog Controller<span> (DC) is an element that composes the Language Comprehension module and provide a way of establishing a </span>dialog<span> between two agents. A DC can be prepared to answer questions or start a new conversation spontaneously. For instance, the internal state of a given agent can be monitored.</span>
Structurally, DNA and RNA are nearly identical. As mentioned earlier, however, there are three fundamental differences that account for the very different functions of the two molecules. RNA has a ribose sugar instead of a deoxyribose sugar like DNA. RNA nucleotides have a uracil base instead of thymine.
The answer is B An observation about the number or amount of something
genetic drift
Explanation:
Genetic drift is changes in allele frequencies of a gene pool due to chance or random events. This can occur in large or small populations. Genetic drift causes gene pools of two isolated populations to become dissimilar as some alleles are lost and other are fixed.
