The mammalian heart is a remarkable pump that keeps warm-blooded animals alive. Its internal structure is fundamental to how blood circulates around the body.
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The mammalian heart is a remarkable pump that keeps warm-blooded animals alive. Its internal structure is fundamental to how blood circulates around the body.
Anoniem stemmen is mogelijk. Registreer voor een profiel en score.
Should grouse moor burning be banned to protect England's uplands and climate?
🗳 27 votes
