Biology

What gives red blood cells their color?

More Questions from Biology
What type of system circulates blood around the body?
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Which of the following animals live in large groups for protection?
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Rainfall made sufficiently acidic by atmospheric pollution is called what?
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What would you call an animal with three main body parts and six legs?
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What is a group of food chains that are related in some way called?
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Which animal is active at night?
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What are animals that have no backbones called?
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How long can an anteater's tongue get?
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