Noticeable effects of glaciation include:
Smooth exposed bedrock
Soil deposits
Depressions that have developed into ponds and bogs
All of the above

A transition zone:
Is constantly changing
Supports diverse plant and animal life
Was on early travel and trade routes

The Massasauga rattlesnake:
Is timid and defenseless
Is poisonous and usually considered dangerous
Is poisonous but avoids all human encounters