There is four kingdom in the domain eukarya.
Domain eukarya is made of eukaryote organism. Domain eukarya has 4 kingdom: Protista, Fungi, Plantae and Animalia. The member of Plantae is autotroph organism that has chlorophyll and capable of doing photosynthesis. Fungi has cell wall that made of chitin. Animalia doesn't have cell wall.
The study of statistics. Like the increase or decrease of things. For example birth rates or the size of the human population.
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They're found orbiting around outside the nucleus, because they're electrons
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