Veronica made this model of the Sun-Earth-Moon system using a cherry for the Moon, an apple for the Sun, and a watermelon for the Earth.
Cherry
(Moon)
Apple
(Sun)
Watermelon
(Earth)
How could Veronica improve her model?
^ Use the cherry to represent the Sun and the apple for the moon.
* Use a piece of string for the Earth.
© Make the Moon larger than the Earth.
D Use the watermelon to represent the Sun and the apple for the Earth.

Using the periodic table, determine which material is most likely a good conductor

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

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.