Mr Goizueta emphasized that every single one of the best people at the Company has taken some significant risks in moving the business forward. And every one of them has endured risks that failed. With the benefit of hindsight, you start to learn that the perception of risk is often based on faulty assumptions. Sometimes if you look at the decision in a different way, what appears dangerous at first is not really such a risk after all. But it is important to remember that intelligent risks are based on honesty, careful calculations and anticipated results. They are not gambles made on a whim or determind by a toss of a coin.

1. Which chordate class is considered evidence of the transition of vertebrates from an aquatic environment to dry land?

2. What features of amphibians make them dependent on water to survive?

3. Does amphibians have direct development?

4. How different is the respiration of fish from that of adult amphibians?

5. How is respiration carried out by the larvae of amphibians?

6. How different is the heart of amphibians from that of fish?

7. How is excretion carried out in amphibians?

8. Is fertilization in amphibians external or internal? Regarding this aspect, are amphibians evolutionarily closer to fish or to reptiles?

9. Why is the presence of eyelids in amphibians compared to their absence in fish an adaptation to terrestrial life?

10. Given that they came from an aquatic habitat, what problems did vertebrates need to solve to adapt to a terrestrial environment? How has evolution solved these problems?