Comparative anatomy is the study of similarities and differences in organisms.
Explanation:
Scientists used this to compare organisms and their traits through time. They argued that, theoretically, organisms with similar structures must have acquired those traits from their ancestors, hence its use as evidence for evolution.
The study of comparative anatomy predates the modern study of evolution. Early evolutionary scientists like Buffon and Lamarck<span> used comparative anatomy to determine relationships between species. Organisms with similar structures, they argued, must have acquired these traits from a common ancestor. Today, comparative anatomy can serve as the first line of reasoning in determining the relatedness of species. However, there are many hidden dangers that make it necessary to support evidence from comparative anatomy with evidence from other fields of study.</span>
You have to first make some observations and then ask a question. Then you make a hypothesis (or guess) what the answer is - do the experiment to see if you're right!
