The Yellowstone Caldera is a crater in Yellowstone National Park that sits on top of a hot spot and an active magma chamber. The Yellowstone Caldera and other calderas in the park were formed by volcanic eruptions from the same hot spot. Based on this information, which statement about the Yellowstone Caldera is true? A.
The Yellowstone Caldera is the only caldera in the park resulting from a meteorite strike.
B.
The Yellowstone Caldera drags the hot spot with it when the plate beneath the caldera moves.
C.
The Yellowstone Caldera will eventually move farther away from the hot spot source.
D.
All the calderas in the park, including the Yellowstone caldera, formed at the same time.

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.