Article #1 Ants have a remarkable sense of smell that determines their behavior and interactions with each other. Each ant has its own blend of chemicals on the outside of its body that identifies it to other ants. Minor differences in odor among the ants help the ant colony to maintain order as each ant does its own unique job. Ants within a colony can also notice if an ant enters their colony from a different colony.

A. Use the situation from above and describe what happens inside an ant from the time it senses an odor to when it responds to the odor. Make sure to use scientific vocabulary as appropriate.

B. Identify two ways that ants respond to odors in their environments.