By Angela Moon NEW YORK Tue Mar 25, 2014 6:51pm EDT (Reuters) – U.S. stocks ended higher on Tuesday, rebounding from a two-day decline as the hard-hit biotechnology sector regained its momentum and a strong read on consumer confidence increased optimism about the economy. Trading was choppy throughout the day with the Nasdaq at one point turning lower, led by a sharp reversal in biotech shares. .So-called momentum stocks were still down for the day […]