Can you please help me with my science question?

Please help me my final grade is on the line. Ok, so I need to know two organisms that could effect the lemna growth in a pond. Then i need to know the dependent, independent and constant variable of the organisms. then i need to know which one (constant, independent and dependent) could I change in the experiment to find out how it effects the lemna growth.





Please I would appreciate this so much. Just think about how much it would mean to you , if you had somebody help you raise your grade up from a C to a BCan you please help me with my science question?couldn't even find someone to DO there homework.....tsk tsk

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