Answer:
hypothesis
Explanation:
This is a hypothesis.
A hypothesis is a simple scientific guess into nature usually drawn from succinct and detailed inquiry into the nature.
It is usually preceded by observation making and asking of questions.
Now, we formulate a testable and falsifiable hypothesis which experiments can prove or disprove. This will then lead to the formation of either a theory or law.
The student is predicting from his observation that if the rubber tubing replaces wire, current will not flow.
They use gel electrophoresis to analyze wolf DNA. B. They use biostimulation to promote wolf movement.
Hope this helps
A microscope? Because it like looks at small micro objects.