The two types of microscopes are electron and optical microscopes.
Electron microscopes have a higher magnifying power since it uses lighting technology to do so.
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The independent variable is a variable that can be stood alone. So therefore, the independent variable would be how long it takes to parachute.
Hunting is regulated because plants still need to be eaten by the deer. if they arent, a plant species grows uncontrollably and kills off other plants.