Question

empirical evidence
the relationship between two pieces of data
able to adapt
data obtained through observation
the behavior of an animal aimed at attracting a mate
the slowed physiological state that allows organisms to survive long periods of time with limited resou

Explanation:

Empirical evidence refers to data that is obtained through direct observation or experimentation. It is based on real - world experiences and facts rather than just theoretical assumptions.

Answer:

Data obtained through observation