Anew hybrid species of flower comes in four color varieties: red, white, yellow, and purple. an equivalent amount of each variety is planted in a meadow. below is a description of each of the varieties.

after 100 years, the meadow is mostly covered by the purple variety. only small patches of the other varieties remain.

which of the following most likely contributed to the dominant presence of purple flowers?

question 2 options:

an abundance of moths in the meadow

an abundance of humming birds in the meadow

an abundance of bees in the meadow

an abundance of butterflies in the meadow

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.