Research studies that retest the same group of people throughout their lives are classified as studies.

Which region on the map would have been directly affected by the infestation of the boll weevil in the late-19th and early-20th centuries? a) 5 b) 4 eliminate c) 3 d) 2

How would having more railroad tracks be advantageous during a war

Read the paragraph and answer the question that follows: the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert which sentence should be revised to eliminate redundancy? the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert system is needed immediately.