Plzzz helpp ASAP 1. Why is it important to know what the limitations of a particular model are? A. so you can create a prototype based on your model B. so you don't make the mistake of confusing an object and a system C. so you can revise your model to represent every property of the real thing D. so you don't confuse properties of the model with properties of the real thing 2. Mathematical and computer models are similar because both involve . A. using calculations to represent an object or system B. comparisons between an object or system and something familiar C. building a complex object or system isolated from the natural world D. creating real-life objects that show features of the modeled object or system

3. Some models can illustrate a system. What does the term system refer to? A. a collection of interacting things B. a set of rules or laws about things C. something with advantages and limitations D. something illustrating parts of a real-life thing

4. J. J. Thomson's Plum Pudding Model is an example of . A. a picture B. an analogy C. a prototype D. a mathematical model

5. An advantage of describing a cell as being like a factory is that it . A. makes cells easier to understand B. shows the limitations of cells clearly C. prevents having to study the complexities of cells D. is cheaper to do experiments in a factory than on a cell

6. Scientists like using models because they are often than the real thing. A. more accurate B. more enjoyable to study C. cheaper and more complex D. cheaper and easier to work with

7. An advantage of J. J. Thomson's Plum Pudding Model was that it . A. was a much less expensive way to study atoms B. simplified the calculations necessary to describe an atom C. clearly explained where electrons were located in an atom D. is much less expensive to bake a plum pudding than to look at an atom

8. A small clay model of a volcano is an example of . A. an analogy B. a prototype C. a physical model D. a computer model

9. An advantage of using a model instead of the real thing is that models . A. include better detail B. can be easier to change C. are much more interesting to study D. don't include any features of the real thing