94
/ 100
True
Starfish don't have blood and circulate nutrients using seawater in their vascular system.
Infact verdict: True (94/100).
Both claims about starfish are supported by multiple high-quality sources. Starfish indeed lack blood and use seawater in their water vascular system to circulate nutrients. This unique biological feature is well-documented in marine biology literature and confirmed by reliable sources.
How is this score determined? →Individual claims
94
True
Science
Starfish don't have blood.
Multiple high-quality sources confirm that starfish do not have blood. Instead, they use seawater in their vascular system to circulate nutrients. This is a well-established fact in marine biology.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
95
Web Consensus Weight
40
Source Quality Score
90
Source Quality Weight
20
Llm Reasoning Score
85
Llm Reasoning Weight
40
Llm Reasoning Score Raw
85
Weighted Total
94
Evidence Summary
3 web sources confirm starfish lack blood.
94
True
Science
Starfish circulate nutrients by using seawater in their vascular system.
The claim is supported by multiple reliable sources stating that starfish use a water vascular system powered by seawater to circulate nutrients. This is a well-documented biological fact.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
95
Web Consensus Weight
40
Source Quality Score
90
Source Quality Weight
20
Llm Reasoning Score
85
Llm Reasoning Weight
40
Llm Reasoning Score Raw
85
Weighted Total
94
Evidence Summary
3 web sources confirm starfish use seawater in their vascular system.
