"he was the best in the outfield; he was the best at the plate; he was the best as a teammate" is an example of

This is an example of repetition.
Repetition is an important literary device since it allows a speaker or a writer to put emphasis on items they choose to be significant. it is an important tool for authors and speakers in developing style, tone, and rhythm. It tells the audience or the reader that the words that are being used are central enough to be repeated, and also lets them know when to pay a special attention to the language. 

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.