The flexes the vertebral column, compresses and pushes fecal material out of the body during defecation and is used to initiate forced breathing during the childbirth process.

the answer is c.mitochondria. glad to .

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igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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