Biology

What are the tiny air sacs in the lungs called?

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What is the name of the machine that separates blood?
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Which of these senses do you use to tell what color an object is?
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What type of tissue does the adenovirus affect?
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Which of the following is a hooved animal?
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Which of these plants is a conifer?
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What protein is found in the hair and nails of mammals?
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What animal has the largest brain?
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Which of these animals might use a coral reef for hiding and protection?
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