Select all that apply. The small intestine . breaks down food to a thin, watery mixture
absorbs dissolved food with hundreds of villi
stores food
churns and mashes food into smaller pieces

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