Aphids are a type of insect. they reproduce asexually in the spring and summer. they reproduce sexually in the fall. how might this pattern improve the species chances for survival?

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