The answer is the second choice
The answer is C. They destroy the ozone layer
heterozygous means it is not the same gene expression
so both are
Pp'Pp
the second one
Type 1 diabetes: Its a chronic condition in which the pancreas produces little or no insulin. The symptoms include: increased thirst, frequent urination, hunger, fatigue, and blurred vision. This can be cured if treated propertly.
Type 2 diabetes: A chronic condition that affects the way the body processes blood sugar (glucose). the symptoms are the same as Type 1 but sometimes for type 2 you won't be able to feel any symptoms.
Hope this helped :)
