Simplify the following text for a Grade 10 native English-speaking person.
Original: However , how this biochemical toolkit is used to interpret an organism 's environment varies widely : eyes have a wide range of structures and forms , all of which have evolved quite late relative to the underlying proteins and molecules .
Simplified: How this biochemical toolkit is used to interpret an organism 's environment varies widely . Eyes have a wide range of structures and forms , all of which have evolved quite late relative to the underlying proteins and molecules .