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Explain how clouds can participate in both positive and negative feedback loops.
Specialized Cells
Cells differentiated to perform specific functions necessary for the organism's survival, such as nerve cells, muscle cells, or blood cells.
Tissue
Groups of similar cells and their extracellular matrix from the same origin that together carry out a specific function.
Embryonic Germ Layer
One of the three primary layers of cells (endoderm, mesoderm, ectoderm) in the very early embryo that gives rise to all the body's organs and tissues.
Ectoderm
The outermost layer of cells or tissue of an embryo in early development that gives rise to the formation of the skin and nervous system.
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