What is the purpose of completing three trials?

a. to be able to generate enough data in order to be able to publish your results

b. to increase the accuracy of your results by identifying a trial that may be repeating

c. to guarantee the accuracy of your results

d. it is standard procedure to always test an experiment 3 times

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.

Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f