Metamorphic rocks with a non-foliated texture show metamorphic change that involves d. mineral grains arranging into layers b. growth in the size of the mineral grains mineral grains flattening under pressure d. mineral grain melting C.

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.

Why are current extinctions of concern to enviromentalists?

What will happen to the amount of food available as a pondwater ecosystem ages