Keyword Analysis & Research: what's the difference between rods and cones

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what's the difference between rods and cones	0.02	0.5	6820	23	44
what's	0.08	0.4	4879	45	6
the	1.23	0.2	7934	84	3
difference	0.02	0.5	1282	95	10
between	0.62	0.2	6986	38	7
rods	0.02	1	3207	100	4
and	0.77	0.3	6484	30	3
cones	0.97	1	339	53	5

Keyword	CPC	PCC	Volume	Score
what's the difference between rods and cones	0.71	0.9	7173	3