Asap frank loved to play tennis, and he was on the tennis court every day. frank could hit the ball very hard. he was a good player. one day he met his friend jim for a game of tennis. jim had just started playing tennis. after the game frank said, "i will you with your shots, jim." which statement below would be considered an prediction. a. frank plays tenis very well. b. jim will get better at tennis with franks advice. c. frank loves tennis. d. frank loves to play basketball.

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.