Answer:
Natural Selection
Explanation:
Genetic variations are one of the most important factors in the evolution of organisms. Mutations are fundamental in this process. When a mutation is produced in an organism, and that mutation produces an 'attractive' trait that will potentially help the organism to reproduce, then, this trait (if the mutation is hereditary) will be passed on to the subsequent generations and will stay in the population as it is beneficial.
This perfectly illustrates natural selection, which refers to a process in which a trait that is advantageous will stay in a given species if it helps the individual to survive and reproduce. In other words, nature "selects" the organisms that possess the 'best' traits so they can pass them from generation to generation and increase their chances of survival.
'Although concrete operational thinkers might succeed on the balance-a-scale test of formal reasoning, they are less likely to do so because of their reliance on <u>trial and error</u>.
An operational definition is a definition that defines the precise way wherein a variable is measured. Giving the steps used in defining each variable allows others to evaluate and potentially mirror research take a look at.
Your operational definitions describe the variables you may use as indicators and the processes you will use to study or degree them. You need an operational definition due to the fact you can not measure something without one, regardless of how top your conceptual definition is probably.
An operational definition of a variable is the set of approaches used to measure or control it. a great operational definition is obviously sufficient so that an unbiased researcher ought to use the same technique (mirror the studies) and get identical outcomes.
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I believe it's B) the Byzantine Empire
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