Fact Each organism has a set of preferred what it chooses environmental conditions.Isopods usually prefer a moist environment and beetles usually prefer dry.
Carbon dioxide A colorless odorless gas present in the atmosphere it is exhaled by animals and used by plants to create oxygen.It changes the acidity of water when exhaled by aquatic organisms.
Controlled Experiment A set of investigations that are almost exactly the same except one variable is manipulated/changed while all other variables are controlled or kept the same.