[Answer] What color is the blood of a starfish?

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What color is the blood of a starfish?

• Starfish don't have blood:The oceans and seas of planet Earth are home to over 2,000 species of sea stars, the creatures formerly known as starfish. Their habitat ranges from the tropics of the Equator to the frigid depths of the seafloor. Sea stars with five arms are the most common but there are species with 10, 20, and all the way to 40 arms. They are pure marine animals, unable to live in freshwater and only a few species live in brackish water. One unique feature of the sea stars is their blood: they don't have any. Sea stars circulate sea water through their bodies via a water vascular system. They are able to extract the nutrients from the sea water as it moves through their bodies. Source: NationalGeographic.com

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