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Unit 10 Ecology Pt. II Study Guideright1270000What is a population?Identify and describe the three characteristics of a population that ecologists study.List the factors that affect the size of a population. Complete the following statements by putting the following symbols: <, >, =When a population is increasing, birth rate _____ death rateWhen a population is decreasing, birth rate _____ death rateWhen a population has reached carrying capacity, birth rate _____ death rateComplete the table below to describe the two types of population growth.Type of GrowthDescription/Key CharacteristicsDrawing of GraphDefine carrying capacity. In Year 0 of a population of frogs, there is 100 individuals. They live in an isolated pond in which no migration occurs. 20 frogs were born and 10 frogs died. right762000Is this population growing or shrinking? How do you know?What is the growth rate for this population?How many frogs will be in the population in Year 1?If birth rate and death rate stay the same, how many frogs will be in the population in Year 5?Define density-dependent limiting factor and provide TWO examples.Definition:Example 1:Example 2:Define density-independent limiting factor and provide TWO examples.Definition:Example 1:Example 2:Define plete the Venn Diagram below comparing primary and secondary succession. 1552575188595PRIMARY0PRIMARY3390900169545SECONDARY0SECONDARY213360064770409575933452619375102870BOTH0BOTHWhat is biodiversity and why is it important?Describe the FOUR major threats to biodiversity: right1206500Define extinction.What is an endangered species?Draw an image that shows what habitat fragmentation is. (Hint: see your notes for an idea)What is the relationship between habitat size and diversity of species?54959256096000Describe biological magnification. Why do invasive species pose such a threat to biodiversity?What is conservation?Define plete the table below to describe the three types of symbiotic relationships.Type of SymbiosisSymbol TrickDefinitionExample ................
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