Adj. 1. preceding-existing or coming before. antecedent-preceding in time or order. succeeding-coming after or following. previous-Preceding means occurring immediately before the time of the utterance, while previous means occurring at some time before the utterance..
Rods and cones are part of eye They differ in following way-Rods are very sensitive to light and can distinguish colors.cones are less sensitive to light and can distinguish color. so correct option i conclude is C hope it helps
Introduction: are classically described as distinct photoreceptor cells with different receptive characteristics mediated by distinct opsins, but recent studies show that salamander blue-sensitive cones and green rods both express an identical opsin.