they need energy because there cells need to reproduce
Substances that are made up of only one type of atom.
The role of the nucleolus is to make the monomer of of ribosomes, and ribosomes are used in mRNA to make protein. Therefore the nucleolus plays a major role in the process of making proteins for our body. <span />
I think it is D for mountains form from the movement of tectonic plates which create volcanoes that erupt and form mountains
