Can bioddgradeble pollutants cause environmental problems?

What feature of cell theory is best demonstrated in the image

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase