09. Would they have blood or would they have another kind of body system? (A K2S Question)

From The Space Library

Most animals, and even insects, on our planet have some sort of blood! We think that blood is necessary to carry nutrients or food to the various parts of the body like the brain, heart, lungs and skin. So by our way of thinking, aliens would need some sort of transportation system to carry nutrients to parts of their bodies. But maybe the alien has another way to do it. That would be an exciting discovery and would teach us something new.

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Answer provided by Robby Gaines

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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