At its peak, the roman empire encompassed a land area that included present-day a. china b. poland c. spain

In the practice of science, this type of reasoning is used to develop explanations.

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

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?