Answer: the Alps and the Apennines,
Two mountain ranges, the Alps and the Apennines, helped to protect Rome from invasion. The Apennines divide the Italian peninsula in half and, according to SPQR Online, allowed the Romans to mass forces for counter-attack whenever they were threatened.
Answer:-A coelom is a true body cavity, whereas a pseudocoelom is a false coelom that is not fully functional.
Explanation:
Pseudocoeloms arose early in animal evolution and evolved into coeloms. Only a coelom is fully lined with mesoderm tissue. However the main difference is that pseudocoeloms are not truly functional and they are not like coleloms that are true body cavities.
When diverse African empires, small to medium-sized nations, or kinship groups came into conflict for various political and economic reasons, individuals from one African group regularly enslaved captives from another group because they viewed them as outsiders.
