PRAGUE, March 20 (Reuters) - The head of the Czech Republic's lower house said on Monday she would lead 150 businesspeople, scientists and officials to Taiwan this week, the country's biggest-yet delegation to the self-ruled island, despite repeated warnings from China. Newly elected Czech president Petr Pavel drew a sharp rebuke from Beijing in January after taking a call from Taiwanese President Tsai Ing-Wen, a clear shift from his predecessor's attempts to win Chinese business. See here for a complete list of exchanges and delays