This lab had a control. which trial was the control? a)water b)hydrogen peroxide c)vinegar and hydrogen peroxide d)cooked samples and hydrogen peroxide

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.

If you want to double a batch of brownies you must have double the ingredients before you start cooking similarity a cell must double its contents including its dna prior to dividing

How secretion and excretion both are different? explain in simple language.