What is a function of the integumentary system?

Would really appreciate it, i have an idea but not completely sure

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.