A microscopic image of plant cells is shown. An arrow points to the cell membrane. Which is a function of the cell structure that is labeled X? It stores lipids. It helps in cell metabolism. It provides support. It transports proteins.

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.  

hope this