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Biology Study Guide

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Biology 10 Study Guide #1

1. List some of the characteristics that distinguish living from non-living things. 2. Outline the basic steps of inquiry included in the scientific method. 3. What is the difference between a hypothesis, a theory and an opinion? 4. What is homeostasis? 5. Be able to summarize the basic idea represented by each of the 10 majors themes that form the cornerstones for understanding Biology. Be able to provide an example for each of these.

The Chemistry of Life: 1. If you were probing for life on a distant planet, what could you look for to determine whether it was even possible for life to exist, or to have existed, there. Why is each of things you’ve identified important to life. 2. Review the definition of an atom. What is meant by the idea that it is “the smallest unit of a pure substance that retains properties of that substance”? 3. Understand the nature and arrangement of the subatomic structure of atoms. Where are the subatomic particles found? 4. Why are we concerned about whether atoms are reactive or not? 5. What determines whether a particular element (type of atom) is reactive? 6. Understand the difference between inert elements and those that are reactive and capable of forming chemical bonds. What is the significance of the valance shell of electrons? 7. Why do atoms seek to form bonds with other atoms? How does this correlate with their stability? 8. Understand the nature of ions and ionic bonds. Why is sodium able to ionize, whereas carbon cannot? 9. Why are sodium atoms usually found as positive ions? Why does chlorine ionize to become a negatively charged chloride ion? 10. Understand the nature of covalent bonds. How does the formation of covalent bonds lead to greater stability? 11. Why are the elements C, H, N, O, P, and S so abundant in the

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