A swamp involves the biosphere and the hydrosphere
a farm involves the biosphere and the atomosphere
By studying a particular species .
a chemical landfill is where chemical waste is stored once it has been used
if it is secure it means that the waste cannot pollute the environment through water, air etc
Answer:
Prokaryotic cells only have free-floating DNA, while eukaryotic cells have DNA enclosed in a nucleus. ... Prokaryotic cells only have cell membranes, while eukaryotic cells have both cell membranes and cell walls