Answer:
Students who take a PE class and who will be eating sugary snacks before PE.
Explanation:
The control variable (or control group) is an experimental element which is constant or unchanged throughout the course of the experiment.
The option "students who take PE class and who will be eating sugary snacks before PE" will remain unchanged and constant because the whole point of the experiment is to see the effects on students performance in PE after eating sugary snacks.
Hope this helps :)
<h2>Answer</h2>
Spontaneous generation does not support cell theory because
- <u>A. All cells arise from preexisting cells</u>
Correct me if I'm wrong
<h3>#CarryOnLearning</h3>

Olá! Eu acredito que você colocou sua pergunta na categoria errada. Não se esqueça de fazer a pergunta na seção de idiomas estrangeiros para evitar que a pergunta seja excluída.
Com sua pergunta real, não acho que posso ajudá-lo com isso, e sinto muito por isso.