Discussion Questions: Duck Development
Why do you think cells specialize to form the nervous system and cardiovascular system before forming other organs such as the kidney? Compare a duck embryo with an adult duck: How do the cells of each get raw materials? How do the cells of each get oxygen? How do the cells of each get rid of carbon dioxide? What is meant by "raw materials for growth"? Yolk has all the raw materials a duck embryo needs before it hatches. Where does a duckling get the raw materials it needs for growth? What is being distributed in the system of distribution?
