When walking through the woods adam and alise saw many mushroom-like organisms growing out of logs that were laying on the ground. these logs were pieces of trees that had either completely fallen down or had broken off of the larger tree. what did adam and alise really see?

a. the mushrooms were only anchored to the dead logs and were undergoing photosynthesis.
b. the mushrooms were the trees to stay alive.
c. the mushrooms were decomposing the dead tree logs.
d. the mushrooms and tree logs were exchanging genetic material.

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.