At one point, scientists observed that the ozone shield was getting thinner. they warned that the loss of the effectiveness of this shield may lead to an increase in
(1)allergies to ozone
(2)mutations that lead to cancer
(3)viral diseases, such as aids
(4)ice formation at the poles

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.

answer///unconditioned stimulus;

genetic variations are caused by mutations which are random in the population