Biology

What substance in your ears helps keep germs and dirt out?

More Questions from Biology
What is another name for the immune system?
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What insect looks like a twig on a branch, bush or tree?
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What are the young leaves of a plant embryo called?
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Which of these is part of an onion plant?
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Which of the following does NOT grow on a tree?
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What is the study of interrelationships of animals and plants to their environment?
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What group of animals do snails, slugs and octopuses belong to?
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What are the structures found in the cytoplasm of eukaryotic cells called?
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