To remain fit and healthy, we should all try to eat a balanced diet. This means that we need to eat foods from the five major food groups, meat and fish, fruit and vegetables, cereals, pasta and potatoes, dairy in appropriate proportions.
AQA Science: Glossary - Reproducible. A measurement is reproducible if the investigation is repeated by another person, or by using different equipment or techniques, and the same results are obtained. N.B. the same results implies identical, but in reality the same means that random error will still be present in the results.
An allegory is an extended metaphor. The Crucible is an allegory for what happened during the red scare in American in the 1950's. Senator McCarthy accused many people of being part of the communist party. It is said to have been a modern-day witch hunt.