What is the cell nucleus?
In a cell the nucleus acts like the brain because it contains the cells DNA. It also acts as a command center because the DNA is read and processed in the nucleus to tell the rest of the cell how to function.
what are some possible theorems to use to prove triangles are congruent?
Theorems include: AAS SAS HL SSS.
Define an atomic orbital.
An atomic orbital is a space that a valence electron is most likely to be. Since electrons cannot be mapped in speed and position, the orbital is a way to visualize the patterns of electrons and bonding. There are sigma and pi orbitals with sigma orbitals being the strongest to bond to.