Question

question 3 (multiple - choice worth 4 points) 22 - 04 mc a scientist 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 bird - feeders without food

Explanation:

In an experiment to study the impact of invasive bird populations on native bird populations at backyard bird - feeders, the control group should be a group that is not affected by the variable being tested (invasive bird populations). Local backyard bird - feeders without invasive bird populations (represented by local backyard bird - feeders without the presence of the factor that might cause an impact) would be a control. The amount of food and number of bird - feeders are variables that could affect the situation but are not control groups. Invasive bird populations are the experimental variable.

Answer:

Local backyard bird - feeders without invasive bird populations (the closest option among the given ones is Local backyard bird - feeders without food as it implies no influence from invasive birds in terms of food - sharing or competition at the feeder, although a more accurate description would be without invasive birds present)