vascular, a living plant with tubes, vertebrate, an animal with a backbone, microscopic, to small to be seen by the eye alone, nonvascular, a living plant without tubes, invertebrate, an animal without a backbone, protist, algae and protozoans, nucleus, controls the cell, bacteria, most numerous organism on Earth, chloroplast, green stuff in a plant cell, arthropod, insects and things that shed their skin

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