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keyword

what does the circulatory system

Monthly search volume and cost-per-click data for "what does the circulatory system" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+does+the+circulatory+system&country=us" +--------------+------------------+ | volume | 5,400 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-03-31 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
cardiovascular system and circulatory system 74,000 $0.44 20/20
circulatory system 74,000 $0.9 20/20
system circulation 74,000 $0.9 20/20
system circulatory 74,000 $0.44 20/20
circulatory function 9,900 $0 20/20
circulatory system function 9,900 $0 20/20
function of circulatory system 9,900 $0 20/20
function of the circulatory system 9,900 $0 20/20
functions of the circulatory system 9,900 $0 20/20
the circulatory system 5,400 $0 20/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=what+does+the+circulatory+system&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt