Proteins are the building blocks of life. Every cell in the human body contains protein. Which organelles are likely to be abundant in cells such as fibroblasts that actively produce and secrete protein which fuel cells, tissues, and organs?

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