During replication, the function of the enzyme dna polymerase is to a. bind nucleotides together. b. send messages. c. receive messages. d. locate replication sites.

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

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.

Explain how the parts of the peripheral nervous system work with the central nervous system to produce a response to the stimulus