Choose a starting point in the water cycle and describe the process you would go through to move through the entire cycle

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

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.

As scientist had investigated evolution from a variety fields they have found