1. A couple who are both carriers of the gene for cystic fibrosis (CF) have two children who have cystic fibrosis. What is the probability that their next child will have cystic fibrosis? What is the probability that their next child will be a carrier of cystic fibrosis? 2. Black […]

Q1. What basic similarities among mammals and differences between mammals (the in-group) and reptiles (an out-group) help support the hypothesis that all mammals share a common ancestor? Q2. Barry Snowden, owner of Barry’s Snowboards, would like to develop a page that would explain a list of snowboard types along with […]

Changes in electrolytes or amount of fluid in the ICF or ECF affect every system in the body. Sometimes chemicals or infectious organisms can result in extreme irritation of the cells lining the large intestine. In response to this irritation, these cells may secrete sodium into the large intestine. Describe […]

Biology Movement, Cycles and Rhythms Actions for Movement, Cycles and Rhythms’ The control of movement is often divided into mechanisms of reflexes and of voluntary movement. What is a reflex? It is a stereotyped, automatic movement evoked by a specific stimulus. It is uniform across members of a species. Some […]