Methanogens, halophiles, thermophiles
Essentially, a control variable is what is kept the same throughout the experiment, and it is not of primary concern in the experimental outcome. Any change in a control variable in an experiment would invalidate the correlation of dependent variables (DV) to the independent variable (IV), thus skewing the results.
All plant and animal groups existing together and the physical factors with which they interact compose an ecosystem<span>.</span>
Pls post a
pick of the sphere
