Why do people tend to forget correlation does not imply causation?
Confirmation bias; our tendency to look out for and interpret information in a way that confirms our preexisting beliefs is one of many things that can lead us to overlook the fact that correlation does not equal causation.
Name a plant that doesn't have chlorophyll and explain how it gets its nutrients.
The Indian pipe plant lacks chlorophyll. It gets its nutrients by stealing from mycorrhizal fungi in a parasitic relationship.
Why is it important to study art history?
Art history and visual culture, in general, is a reflection of the society that created it. By studying art history we learn about the visual record of our past and what led to it being created the way it was. It provides a unique window into the past which can lead to deeper understanding out or present and reflection on what is to come.