Most deep-sea dwelling organisms have evolved L (red) cones as a way to compensate
for the diminished penetration of blue wavelength light into the deep sea.

Question

Most deep-sea dwelling organisms have evolved L (red) cones as a way to compensate
 for the diminished penetration of blue wavelength light into the deep sea.

Quizplus · Accepted Answer

Deep-sea dwelling organisms typically lack L (red) cones because red light does not penetrate deep into the ocean, making adaptations for blue and green light more advantageous for seeing in their environment.

Most Deep-Sea Dwelling Organisms Have Evolved L (Red) Cones as a Way