Which gas do animals produce and exhale as a waste product of respiration?

The Animal and Plant Health Inspection Service is part of which U.S. cabinet department? Which animal appears on the Victoria Cross, Britain's highest award for valor? What pigment colors animals' skin, hair, eyes and fur? Which animal is the symbol of the political party that held its convention in New York City in August 2004? Animals first went aloft in 1783 when the Montgolfier brothers sent a sheep, a duck and a rooster up in what? Which animals are the "E" in the fraternal organization BPOE? Anita O'Day and June Christy were singers for which bandleader's 1940s big band? Anjelica Huston played Morticia to Raul Julia's Gomez in which 1991 film?