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Service Commission 's corrective measures required that the " respect " aspect of Mr. Chaves ' personal suitability be reassessed with more information being sought from his referees ( Ms. Hughes and Mr. Ignazitto ) but indicated that other referees could be contacted if necessary , and required that the board 's conclusions demonstrate how marks were awarded to the appellant . The homework assignments will not be graded in detail , but doing the homework will be essential for mastery of ideas and techniques required for success on the tests . RasMol can also create a script file containing the commands required to regenerate the current image . Roots not only anchor plants to the soil , but also provide a means to absorb water and nutrients required for growth . The core of effective web commerce and the techniques required for effective recruiting in a tight market are remarkably similar .