Can anyone help me please?

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Which particle controls what element an atom is?

Located at the epidermal-dermal junction of the skin. select all true statements about the transformation of melanocytes into abnormal cell