You have discovered a new sunfish species with traits that are inherited in predictable patterns. You record the following observations: Some sunfish have black ears, while others have red ears. What can you conclude about the inheritance of ear color in this new sunfish species?
1) Ear color in this new sunfish species is determined by environmental factors
2) Ear color in this new sunfish species is determined by random chance
3) Ear color in this new sunfish species is determined by a single gene
4) Ear color in this new sunfish species is determined by multiple genes