The photosphere and chromosphere are typically described by which of the following characteristics? A. the way in which energy travels through them
B. their plasma composition
C. their visible colors, such as red or yellow
D. their extreme depths relative to other layers​

What is the difference between an igneous, sedimentary and metamorphic rock

Ture or false evidence for evolution includes millions of fossils

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.