Answer:
The insecticide must have contain strong, active chemicals that are poisonous and harmful to owls which resulted in their demise while on the other hand, grass hopper or mice may be resistant/ or tolerant to that chemicals that's why it don't have effect on them.
Explanation:
Run more trials for the experiment to ensure that the small difference is not significant. B
Probably through a electron microscope either TEM or SEM. or possibly a picture through the microscope. I hope that helped.
CO2molecule is a reactant in the first step and a final product in the fourth step of the Calvin-benson