What would most likely happen if capillaries had thick walls and large diameters?

Which of the following is the main purpose of a human community?

Why do we perceive objects as retaining their brightness under different lighting levels?

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?