Final answer:
An additional question that would be best for Katya to add to her list about classification is: How are living things related? This question focuses on the concept of phylogeny and the evolutionary relationships between different organisms.
Step-by-step explanation:
Additional Question for Classification
An additional question that would be best for Katya to add to her list about classification is: How are living things related? This question focuses on the concept of phylogeny and the evolutionary relationships between different organisms. By understanding how living things are related, scientists can better organize and classify organisms based on their common ancestry and shared characteristics.