Beside the beak describe at least two other structures or method that birds use in order to obtain, or, to assist in obtaining, food

What makes a personal exceptionality/non-exceptionality

This word for a bug or malfunction was popularized in the 1962 book into orbit by the mercury astronauts

Triangle xyz is translated 4 units up and 3 units left to yield triangle x'y'z' what is the distance between any two corresponding points on triangle xyz and trianglex'y'z' ?