What do you mean ???????????
Answer:
The circled letters represent the genotypes of the two parents
The top 2 letters (A a) is the genotype of one of the parents
The 2 letters on the far left (AA) is the genotype of the other parent
Thin coat , becaus eit protects from temperature
I think the polymers are the hydrocarbons.
If this helped please mark me as brainliest.
