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The energy requirements of living systems include being able to move. These living systems also need energy to eat and to hunt.
building highway systems
The primary responsibility of the Merit Systems Protection Board is to serve as the guardian of Federal merit systems. They also are to protect federal workers from agency management abuse.
Some political systems are Capitalism, Totaltarism, and Communism but there are many more.
How did the river systems impact the ancient worldRead more: How_did_the_fiver_systems_impact_the_ancient_world
Yes
Aqueducts
No they did not unfortunately.... :(((
ditches
ancient Greece
The systems and plows provided a steady food supply.
Sanskrit was one of the very ancient languages and writing systems of India.
by using temples
growth and technical development of prehospital emergency care
They date back to the mesopotamians
Communication and record keeping.