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.
Vein and extrusive rocks are characterized by a porphyritic texture, which is brought about by the rapid crystallization of the magma related to cooling and a loss of volatile components. This texture is sometimes observed around the edges of intrusive bodies.exture and structure of igneous rocks. The texture of igneous rocks depends on the composition of the magma and the conditions surrounding the magmaâs cooling. The textures are different in intrusive, vein, and extrusive rocks.