What term defines a group of particular organisms which live in a community?

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

The effect of a hormone on a target cell may be decreased by the presence of

Name the tissue that in translocation