<p> Callahan Unit 2 Ecology Study Guide: </p><p>Name______</p><p>Terms should be defined on pages 15 and 16 in your work packet</p><p>1. What is the study of Ecology?</p><p>2. When is there zero population growth in species group?</p><p>3. When Exponential growth occurs in a population, the graph of that population looks like what type of curve?</p><p>4. Draw a graph with an exponential growth in the space below:</p><p>5. What are three different ways that populations can increase?</p><p> a.</p><p> b.</p><p> c.</p><p>6. What is a carrying capacity?</p><p>7. What is the origin of energy in an ecosystem? 8. What are the roles of producers? How do they play a key role in helping an ecosystem?</p><p>9. A Snail eating algae is an example of which type? A Producer or consumer? Primary or Secondary?</p><p>10. What is Symbiosis?</p><p>11. What is a trophic Level?</p><p>12. Explain in the space provided the Water Cycle and be able to describe where water vapor in the Earth’s atmosphere comes from.</p><p>13. Explain Eutrophication and what it does to the Earth’s water sources:</p><p>14. What is Competitive Exclusion?</p><p>15. What are some examples of Symbiosis? Commensalism, Mutualism, Parasitism?</p><p>16. What is camouflage? How does it help an organism?</p><p>17. Define an area with Primary Succession:</p><p>18. How does Carbon Dioxide enter the atmosphere? 19. Be able to describe an organism like the Multi-Colored Asian Ladybird beetles, and explain why they can grow so quickly. What would a graph look like of their exponential growth?</p><p>20. Define a Density factor and a Density Independent Factor below:</p><p> a. Density Dependent---</p><p> b. Density Independent---</p><p>Be able to draw a graph showing changes over time for a population and define Birth Rates, Death Rates, Immigration, and Emmigration.</p>
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