- An animal requires a mate to fertilize an egg
- Coloration is used to find a mate by some animals
- So, coloration can can be used by an animal find a mate to fertilize an egg

- Coloration can can be used by an animal find a mate to fertilize an egg
- If something can be used for a process then that something can have a positive impact on that process
- So, coloration can have a positive impact on an animal's ability to fertilize an egg

- Coloration can have a positive impact on an animal's ability to fertilize an egg
- Animals require fertilization to reproduce
- Hence, coloration can have a positive impact on an animal's ability to reproduce

- Coloration can have a positive impact on an animal's ability to reproduce
- An adaptation has a positive impact on an animal 's ability to reproduce
- So, coloration is an adaptation for reproduction for animals

- Brook trout have bright orange bellies
- Having an orange belly is a kind of coloration
- So, brook trout have a bright orange coloration on their bellies

- Coloration is an adaptation for reproduction for animals
- Brook trout have a bright orange coloration on their bellies
- Therefore, bright orange bellies are an adaptation for reproduction for brook trout

- Bright orange bellies are an adaptation for reproduction for brook trout
- Adaptation is when an organism develops a trait over time for survival
- So, brook trout developed bright orange bellies over time to help them reproduce

Therefore, brook trout developed bright orange bellies over time to help them reproduce
Question: During the fall reproductive season, the belly of a male brook trout becomes bright orange. The orange belly provides some camouflage and helps attract females. This trait evolved in brook trout because, compared to males with pale bellies, males with bright orange bellies are more likely to
Context: - An adaptation has a positive impact on an animal 's ability to reproduce 
- If something can be used for a process then that something can have a positive impact on that process 
- Brook trout have bright orange bellies 
- Animals require fertilization to reproduce 
- An animal requires a mate to fertilize an egg 
- Adaptation is when an organism develops a trait over time for survival 
- Having an orange belly is a kind of coloration 
- Coloration is used to find a mate by some animals