Biology

How many main kingdoms are there in the living world?

More Questions from Biology
What is the process of joining the male and female sex cells of a plant called?
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Where are red blood cells made?
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What is an algal bloom that occurs in salt water called?
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What do you count on a tree to tell how old it is?
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What gives red blood cells their color?
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What cells carry messages from all parts of the body to the brain?
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What is the sticky part of the pistil called?
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Which characteristic means moving from place to place?
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