Which of the following is an example when an uncontrolled experiment is best? When testing the effect of water on a lawn
When working with the human body
When testing the effect of sugar on a starch
When testing plant growth

When working with the human body , I had the test so..

Explanation:

Uncontrolled: If an extraneous variable is not controlled for (held constant) its effects become confused with or confounded with the effects of the independent variable. It then has an unwanted effect on the dependent variable and is termed a confounding variable .The researcher can no longer draw conclusions regarding the causal

4tghyjuklertghyjukl

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.