Biology
What is another name for the immune system?
More Questions from Biology
Rainfall made sufficiently acidic by atmospheric pollution is called what?
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Which of the following is made from nervous tissue?
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What natural biological defense system protects the body from disease and fights off germs?
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With what process do living creatures make more of themselves?
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Which of these African grassland animals shares a food source with the zebra?
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How many main kingdoms are there in the living world?
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