Keyword Analysis & Research: what is the purpose of the iris in the eye

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the purpose of the iris in the eye	1.61	0.8	6744	36	42
what	0.32	0.5	7905	21	4
is	1.03	0.2	3043	80	2
the	0.33	0.3	292	11	3
purpose	0.79	0.4	9594	58	7
of	0.91	0.6	9136	58	2
the	0.31	0.7	7467	89	3
iris	0.54	0.2	5974	70	4
in	0.23	0.8	4449	25	2
the	1.08	0.4	1640	41	3
eye	0.88	1	4108	94	3

Keyword	CPC	PCC	Volume	Score
what is the purpose of the iris in the eye	1.77	0.8	5098	82
iris eye purpose	0.35	0.3	1263	86
what's the purpose of the iris in your eye	1.35	0.7	7502	95
what is the purpose of the iris	1.11	0.9	7526	37
what is the function of the iris	1.4	0.5	6173	79
what is the role of the iris	0.01	0.3	2411	55
what's the function of the iris	1.85	0.1	6947	84
what is the iris and its function	1.99	1	6046	64
main function of the iris	0.53	0.6	4419	71