igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.
the eggs of the insects should be the first thing collected at the scene.
Escherichia es el género; Coli es la especie y B es la cepa.
Escherichia is the genus; coli is the species and B is the strain.