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yuradex [85]
3 years ago
11

During an investigation, Sam observes the number of hummingbirds that come to his large bird feeder at different times of day. H

e fills the feeder to the top the first day and counts the number of birds at 6 a.m., noon, and 6 p.m. over ten days. What are the independent and dependent variables in Sam’s investigation? The number of birds is the independent variable, and time is the dependent variable. Time is the independent variable, and the number of birds is the dependent variable. The type of bird food is the independent variable, and the number of birds is the dependent variable. The number of birds is the independent variable, and the type of bird food is the dependent variable.
Biology
2 answers:
podryga [215]3 years ago
5 0

Answer:

time is the independent variable because he is changing that and the dependent variable is the amount of birds

Explanation:

mina [271]3 years ago
3 0
The answer is <span>Time is the independent variable, and the number of birds is the dependent variable. </span>

<span>An independent variable is variable that is not affected in the experiment. It is what experimenter controls. On the other side, a dependent variable is called dependent because it depends on the independent variables. It is what is affected during the experiment.
In Sam investigation, he controls time - he counts birds at 6 a.m. and 6 p.m. So, time is the independent variable. The number of birds is affected during the experiment, so it must be the dependent variable.

</span>
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