What is it called when lava cools and hardens? Sometimes magma flows upward and is forced out onto the earth's surface during a volcanic eruption. Magma that reaches the surface of the earth is called lava. When it cools and hardens, it too forms igneous rock. Igneous rock that is formed on the earth's surface is described as extrusive.n:
Answer:
Explanation:
DNA replication would be semi-conservative because they produce two copies. one being the original one and then the new one
Relating to development involves the specialization of CELLS by form and function, and NOT the entire organism?
differentiation, morphogenesis or growth?
I think the answer is differentiation.
