The three main systems of government used today are unitary systems, federal systems, and confederate systems
Plant and animal cells both undergo mitotic cell divisions. Their main difference is how they form the daughter cells during cytokinesis. During that stage, animal cells form furrow or cleavage that gives way to formation of daughter cells. During telophase, plant cells phragmoplast forms in the center of the cell.
Answer:
B. A set of moving sections of lithosphere