types of photoreceptors in the retina

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
types of photoreceptors in the retina	0.45	0.6	4335	47	37
types	1.67	0.2	4961	33	5
of	1.05	0.2	9643	59	2
photoreceptors	0.93	0.5	2173	30	14
in	1.23	0.9	5070	46	2
the	1.08	0.8	170	52	3
retina	1.77	0.4	6533	52	6

Keyword	CPC	PCC	Volume	Score
types of photoreceptors in the retina	1.75	0.9	3645	90
the retina has two types of photoreceptors	1.22	0.5	6125	30
two types of photoreceptors in the eye	0.97	0.3	5594	89
photoreceptors of the retina	0.32	0.9	8531	79
what are the two types of photoreceptors	0.57	0.6	6992	66
the photoreceptors of the retina are called	0.3	0.9	7634	13
what are the 2 types of photoreceptors	1.17	1	6178	53
what are the photoreceptors of the eye	0.71	0.5	8628	9
the retina has photoreceptors known as	0.96	0.5	6087	72
two kinds of photoreceptors	0.89	0.2	1662	10
photoreceptor cells in the retina	1.95	0.1	3206	93
the retina contains photoreceptors called	0.8	0.3	7576	73
what are the two groups of photoreceptors	1.46	0.6	1207	4