Weegy: C. Archaea. Domain Archaea- unicellular prokaryotes with cells walls. Live in extreme environments. User: Look at Figure 19–1. Which of the following theories explains why the edges of Africa and South America fit together like two pieces of a puzzle?
C. plate tectonics
D. punctuated equilibrium
Weegy: C. plate tectonics User: The separation of populations by barriers such as ... (More)