keyword

biology chapter 18

Monthly search volume and cost-per-click data for "biology chapter 18" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=biology+chapter+18&country=us" +--------------+------------------+ | volume | 20 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
ap biology chapter 18	50	$0	2/20
chapter 18 ap biology	50	$0	2/20
ap biology chapter 18 reading guide	30	$0	2/20
chapter 18 biology	20	$0	13/20
biology chapter 18 assessment answers	20	$0	2/20
chapter 18 ap bio reading guide	20	$0	2/20
chapter 18 assessment biology	20	$0	2/20
chapter 18 assessment biology answers	20	$0	2/20
chapter 18 classification	20	$0	2/20
body fluids and circulation class 11 notes learn cbse	0	$0	2/20

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=biology+chapter+18&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