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it is because they do not have red blood cells .

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13y ago

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Why squids blood contains haemocyanin?

Since squids do not have haemoglobin they use haemocyanin to bind and transport oxygen throughout their body.


Which organ do most mollusks and crustaceans use to obtain oxygen?

Gills, in the shell in molluscs, and between the hind legs in crustaceans.


Is there is hemoglobin in blue blood?

All human blood contains hemoglobin (spelled differently in different countries) Blood is bright red when oxygenated, and very dark red when oxygen is depleted (in veins) It is never blue. For animals that do have blue blood, ie, molluscs and many arthropods such as Horseshoe Crabs, this is due to the oxygen being carried by copper-containing haemocyanin, rather than iron-containing haemoglobin.


What does crustaceans and Moluccas use to carry oxygen round the body instead of haemorrhoid?

Crustaceans and mollusks use a copper-based protein called hemocyanin to carry oxygen in their bodies instead of hemoglobin, which is iron-based. Hemocyanin is found dissolved in their hemolymph, the equivalent of blood in these animals, and gives their blood a blue color when oxygenated. This adaptation allows them to efficiently transport oxygen in their aquatic environments.


What is the structure through which crustacean obtain oxygen?

Crustaceans obtain oxygen through gills.


What are the blood cells that transport oxygen?

red blood cells transport oxygen :)


Why is crab's blood white?

they do not have red blood cells/corpuscles like other animals. there is one variety of crab which has blue blood called Horseshoe crab, which they use it for medicinal purpose. Woodlice along with most other crustaceans including the horseshoe crab have the compound haemocyanin in their blood. Haemocycanin carries oxygen in the same way that haemoglobin does in mammals. Haemocycanin contains a copper atom instead of the iron atom found in haemogobin. The blood is pale blue when it is carrying oxygen and colourless when it is not carrying oxygen. hope this will solve your problems. hannah


Are proteins necessary to transport oxygen to body?

A protein (hemoglobin) is required to transport Oxygen around the body.


Do crustaceans absorb the CO2 in the sea?

no, they breathe out c0,2 they breathe in the oxygen they can find


Why oxygen transport as a liquid?

Oxygen transport as a liquid is not practical due to its low solubility in liquids. Oxygen is primarily transported in the body bound to hemoglobin in red blood cells. This allows for efficient transport of oxygen to tissues and organs.


Lobsters use for respiration?

Lobsters have gills located under their carapace, which extract oxygen from water as it passes over them. The gills are essential for breathing and provide lobsters with the oxygen they need to survive. Lobsters also have a respiratory pigment called hemocyanin in their blood that helps transport oxygen throughout their bodies.


What does blood transport?

blood transport oxygen around the body