In+a+muddy+lake+environment+some+fish+have+brown+scales.+Some+fish+have+silver+scales.+Predators+have+a+harder+time+seeing+fish+with+brown+scales. Which term best describes the brown scales?

Question

1. new mutation
2. advantageous trait
3. inactivated gene
4. predominant phenotype

Answer 1

The term that best describes the brown scales in this context is 2. advantageous trait. The brown scales provide a camouflage that makes it harder for predators to see the fish, giving them a survival advantage in a muddy lake environment.