An unspecialized cell that can divide and give rise to different specialized cells is called a stem cell (Figure above). Zygotes and embryonic cells are both types of stem cells. These stem cells, called embryonic stem cells, can divide indefinitely and can specialize into any cell type. They are totipotent.
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D. BACTERIA IN PLANT ROOTS AND SOIL
Most fish found in the ocean live in the photic zone. This includes sharks as well, turtles, plankton, jellyfish, and basically all common and known animals found in the ocean.
