A controlled situation in which the researcher manipulates one variable to discover its effect on
another variable, while holding all other conditions
constant is called an?
A) Experiment
C) Observation
B) Hypothesis
D) Thesis

please answer i have a 60 average in this class

A. Experiment

Explanation:

The question above is related to the "Scientific Method." The "Experiment" is being conducted after the researcher comes up with a hypothesis (scientific guess). This step predicts the accuracy of the hypothesis and ensures that it is being conducted "fairly." In order to do this, the researcher has to control the situation. That said, he needs to manipulate one variable at a time. All the other conditions have to remain constant.

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?