What Is Apical Meristem and What Does It Do? Apical meristem is found at the apices, or tips of the plant, both the tip of the shoot and the root, and is a region of actively dividing cells. The definition is easy to remember when you break it down. An apex (plural: apices) is the tip, the very end, of something. You can think of 'meristem' as any kind of plant tissue that is made of cells that don't know what they want to be when they grow up, like happy, 'merry' children.
A metamorphic rock turns into magma by being exposed to the heat and pressure inside earth. The rock then becomes a flowing form of rock, called magma. It is then deposited back into its origin, a magma chamber, where it is spurted out as lava only to become an igneous rock again. #2. Well, first of all, metamorphic rocks turn into magma from heat inside earth. It gets so hot that the metamorphic rock turns into its flowing form. It then makes its way into the mantle and back out again as lava. The rock cycle is then repeated. A metamorphic rock turns into magma when its plate is being subducted beneath another plate. It is then exposed to the heat inside the mantle. In the mantle, it is melted into magma. The magma is now, what used to be a metamorphic rock.
Besides molten rock, magma may also contain suspended crystals, dissolved gas and sometimes gas bubbles. Magma often collects in magma chambers that may feed a volcano or solidify underground to form an intrusion. Magma is capable of intruding into adjacent rocks (forming igneous dikes and sills), extrusion onto the surface as lava, and explosive ejection as tephra to form pyroclastic rock.