What is the difference between paprika and cayenne, and how does it affect the flavor of dishes they are used in?

Paprika is a mild, sweet spice made from dried red peppers, while cayenne is a hot, spicy spice made from dried and ground red chili peppers. The main difference is in their heat levels, with cayenne being much hotter than paprika. The choice between the two can significantly impact the spiciness and overall flavor profile of a dish.