Your spinal cord is part of your central nervous system. True or False
Answer: True
Helicase "unzips" the two strands of DNA. During DNA replication.
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:
Jan Ingenhousz discovered photosynthesis
