According to one hypothesis, life on Earth emerged from in the presence of large amounts of gases seeping from deep-ocean vents. Another hypothesis, called the primordial soup, suggests that the formation of life was due to the effects of
in Earth’s atmosphere.

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