Biology

Which of the following is a signal that you are hungry?

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What substance in your ears helps keep germs and dirt out?
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Which of these animals is a cnidarian?
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What type of reproduction do yeast cells use?
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What gives red blood cells their color?
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Which of these animals is a reptile?
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What nutrient group is sugar in?
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What name is given to the group of animals that a ladybug belongs to?
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How many bones are in the human body?
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