Akeem cut his finger during an investigation, and it is bleeding slightly. Before helping him bandage the wound, which precaution should the teacher take?

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food