Given a scientific question, generate a correct answer to it.

Ex Input:
Bacteria, viruses, fungi, and protozoa are examples of what, the term for a disease-causing microorganism?

Ex Output:
pathogen

Ex Input:
Latitude plays an important role in determining what in a region?

Ex Output:
climate

Ex Input:
What are atoms or groups of atoms called which carry and electrical charge?

Ex Output:
ions