This bacteria was first discovered in the late 1800âs. Since then, it has had a long history of use in scientific research. It is the most widely used organism in molecular genetics. Part of the reason E. coli is commonly used in scientific research is that it is easy to grow in a lab. The factors that make E. coli easy to grow are its simple nutritional needs, fast growth rate and its moderate maintenance requirements.
What kind of igneous rock texture results from slow cooling magma? A coarse grained texture, referred to as a phaneritic texture, will be the resultant igneous rock texture. The slower the magma cools the more time minerals have to crystall â¦ ize and thus grow bigger.
Igneous rocks are created when magma (molten rock under the Earthâs crust) cools and becomes solid. Magma loses heat when it moves upwards at weak spots, such as cracks, in the crust. Extrusive igneous rocks form when magma reaches the surface and cools quickly.Fast cooling produces fine-grained rocks.his pink granite shows grains of pink feldspar, white quartz, and black mica. It is formed by slow cooling of molten rock deep in the Earth. Porphyrite (also called microdiorite) is a grey or dark grey intrusive igneous rock.