Two people are paddling upstream in a canoe, one person uses a force of 100 n and the other exerts 150 n and the other exerts 150 n and the other exerts 150 n in the same direction. the river is creating a drag force of 25 n on the canoe. what is the net force?

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.