Answer:
Adjust your day-to-day behaviors
Energy conservation can be as simple as turning off lights or appliances when you do not need them. You can also use energy-intensive appliances less by performing household tasks manually, such as hang-drying your clothes instead of putting them in the dryer, or washing dishes by hand.
Atoms are the smallest unit of non-living things and CELLS are the smallest unit of living things.
All DNA is a cell is harbored in the nucleus, so DNA replication should only occur in the nucleus of the cell.