<span>In a dichotomous key you named them by their traits while in a branching diagram it already has the name and it's traits.
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Hope this helps :)</span>
Some unicellular organisms are similar to animals because they have the ability to move.
Third option
B. It was an explanation for how the earth originated.
The independent variable is the one variable you manipulate in the experiment
The dependent variable (or responding variable) changes as a result of the independent variable
