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Blue Blood is a translation of the Spanish 'sangre azul', attributed to some of the oldest and proudest families of Castile, who claimed never to have intermarried with Moors, Jews, or other races. The expression probably originated in the blue appearance of the veins of people of fair complexion as compared with those of dark skin.

It has been used in English since 1834.

Kings and Queens and other members of royal families are said to have blue blood. But they actually have the same kind as everyone else.

Blue blood is black blood (1100-1848) by egmond codfried and can be read in Google. The image of the Moor symbolized blue blood, and the Moor is a classical African. Some European Kings and nobles (1100-1848) were described as brown and black of complexion.

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Q: Why are aristocrats called blue blood?
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What a gorvenment control by a group of aristocrats is called?

A government controlled by a group of aristocrats is an oligarchy.


What were southern aristocrats called?

planters


What color is blood going away from the heart called?

BLUE


What insect is blue?

horseshoe crabs do indeed have blue blood, this is because the protein that carries oxygen in their blood is haemocyanin. This protein is a pigment like the haemoglobin in our blood, but instead of using iron to carry the oxygen it uses copper. When iron is oxidised it goes red (hence our red blood) and when copper is oxidised it goes greeny blue (hence the blue blood). horseshoe crab is the animal that has blue blood,,,..but i have no idea of insects having blue blood^_^ All those animals that have haemocyanin as the respiratory pigment have their blood blue when oxygenated. Haemocyanin is the respiratory pigment akin to haemoglobin but hemocyanin has copper as the cofactor instead of iron which you find in haemoglobin. Animals belonging to class crustacea and those belonging to phylum Mollusca have hemocyanin, and hence they have blue blood. Some notable crustaceans are crabs, lobsters, shrimps. Some notable mollusks include Snails, whelks. mytilus, oysters, chitons, squids, sepia, octopus. Limulus, called a horseshoe crab, also has hemocyanin.


Do blue crabs have blood?

Yes. All crabs have blue blood, not just the species known as the blue crab. The reason for the blue blood is that crabs do not have haemoglobin, which is found in the blood of vertebrates, and which is red due to the iron molecule in the centre of the protein. Instead, crabs have a protein called hemocyanin, which contains a copper molecule. This is particularly pronounced in the horseshoe crab, the blood of which is a stronger blue than other species.


But do penguins have blue blood?

No, penguins do not have blue blood. An animal who does have blue blood is the lobster and lizards have green blood.


What happened to the aristocrats when kings no longer ruled?

The aristocrats replaced them, sometimes called oligarchs. Oligarchies replaced monarchies - in Greek oligarchy means 'rule by the few'.


What does the idiom blue blood literally mean?

"Blue blood" LITERALLY means blood that is blue in color.


What makes the blood blue?

Mammalian blood is NOT blue.


What were nobles known as?

If A Tale of Two Cities can be trusted,they're called Aristocrats.


Do any animal have blue blood?

Yes blue animals have blue blood


Does earthworm have blue blood?

Yes, a earthworm does have blue blood.