1. |
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en.wikipedia.org
https://en.wikipedia.org/wiki/Arthropod
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Organic Keywords: 26,359,258
Organic Competitors: 968
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PPC Keywords: 20
PPC Competitors: 165
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2. |
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ucmp.berkeley.edu
http://www.ucmp.berkeley.edu/arthropoda/arthropoda.html
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Organic Keywords: 14,350
Organic Competitors: 782
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PPC Keywords: 0
PPC Competitors: 0
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3. |
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encyclopedia.com
http://www.encyclopedia.com/plants-and-animals/animals/zoology-invertebrates/arthropoda
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Organic Keywords: 376,230
Organic Competitors: 1,122
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PPC Keywords: 0
PPC Competitors: 0
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4. |
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animaldiversity.org
http://animaldiversity.org/accounts/Arthropoda/
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Organic Keywords: 24,715
Organic Competitors: 0
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PPC Keywords: 0
PPC Competitors: 0
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5. |
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earthlife.net
http://www.earthlife.net/inverts/arthropoda.html
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Organic Keywords: 2,602
Organic Competitors: 838
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PPC Keywords: 0
PPC Competitors: 0
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6. |
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tolweb.org
http://tolweb.org/Arthropoda/2469
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Organic Keywords: 4,872
Organic Competitors: 879
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PPC Keywords: 0
PPC Competitors: 0
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7. |
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eol.org
http://eol.org/pages/164/overview
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Organic Keywords: 40,761
Organic Competitors: 1,032
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PPC Keywords: 0
PPC Competitors: 0
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8. |
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bugguide.net
http://bugguide.net/node/view/3
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Organic Keywords: 15,584
Organic Competitors: 690
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PPC Keywords: 0
PPC Competitors: 0
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9. |
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untamedscience.com
http://www.untamedscience.com/phylum/arthropoda/
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Organic Keywords: 4,002
Organic Competitors: 16
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PPC Keywords: 0
PPC Competitors: 0
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10. |
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nhptv.org
http://www.nhptv.org/wild/Arthropoda.asp
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Organic Keywords: 9,834
Organic Competitors: 786
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PPC Keywords: 0
PPC Competitors: 0
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