[Ans] What chemical element gives the blood of a lobster a bluish tint?

Step 1 : Introduction to the question "What chemical element gives the blood of a lobster a bluish tint?"

While humans and many other species have red blood, due to the iron in their hemoglobin, other animals have different colored blood. The bluish tint of a lobster's blood is due to the presence of copper found in the blue haemocyanin molecule in their blood. Hemoglobin, an iron-containing protein found in the blood of other animals—including humans—serves the same oxygen-transporting function but turns blood red. Some animals, such as the sea cucumbers, even have yellow blood. What could make blood yellow? The yellow coloration is due to a high concentration of the yellow vanadium-based pigment, vanabin.

[Answer] What chemical element gives the blood of a lobster a bluish tint?

Step 1 : Introduction to the question "What chemical element gives the blood of a lobster a bluish tint?"

...While humans and many other species have red blood, due to the iron in their hemoglobin, other animals have different colored blood. The bluish tint of a lobster's blood is due to the presence of copper found in the blue haemocyanin molecule in their blood. Hemoglobin, an iron-containing protein found in the blood of other animals—including humans—serves the same oxygen-transporting function but turns blood red. Some animals, such as the sea cucumbers, even have yellow blood. What could make blood yellow? The yellow coloration is due to a high concentration of the yellow vanadium-based pigment, vanabin.

[Answer] 5. Which of the following methods can be used to cook a lobster?

Step 1 : Introduction to the question "5. Which of the following methods can be used to cook a lobster?"

...1. Boiling 2. Grilling 3. Steaming 4. All of these methods Lobsters may be cooked in a variety of ways including boiling, steaming, grilling, and broiling. Some animal activists contend that none of these methods is acceptable since lobsters feel pain. Some scientists have performed studies that show that lobsters probably do not feel pain. The website below has more information on this topic. http://www.cbsnews.com/stories/2005/02/14/tech/main673989.shtml