Biology

How many main kingdoms are there in the living world?

More Questions from Biology
What type of gas is provided by trees to help us breathe?
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The presence of clue cells would most likely be from what?
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What embryological experiment was performed by Hilde Proescholdt?
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Which of these is a sense that humans are known to have?
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How many legs do insects have?
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What does MHC as in MHC protein refers to?
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What process converts sugars into energy and involves breathing oxygen?
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Which of the following is biologically classified as an insect?
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