Please, I need help! In humans the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h. This is a sex linked trait found on the X chromosome. A woman with normal blood clotting has four children: a normal son, a hemophiliac son, and two normal. If the father has normal blood clotting. What is the genotype for each member of the family?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food