Are the kidneys considered highly vascularized? why or why not?

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Explain how scientists use geologic time to determine the age of landforms.

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?