Planet Bruin in the Treude Galaxy orbits a star within its habitable zone. Electromagnetic radiation from this star has a peak flux on planet Bruin between 400-650 nm wavelength. If photosynthetic organisms evolved on planet Bruin, what color would they most likely appear to our eyes

answer: the correct answer for the fill in the blank is rods.

rods are the specialized photoreceptor cells that are present in the retina of human eye. they are responsible for vision in the night time ( also called scotopic vision). they have very low visual acuity and color distinguishing ability.

as they are responsible for vision in night time, therefore they are found predominantly in the nocturnal animals.