The population of annual breeder growing at a rate of 10% per year. Initial population size is 1200. After 3 years population size would be

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#Question id: 10843

#Section 2: Evolution

For a Batesian mimicry system to work,

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#Question id: 4700

#Section 2: Evolution

Which of the following is not an observation or inference on which natural selection is based?

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#Question id: 16897

#Section 3: Mathematics and Quantitative Ecology

In a report by ABC News, the headlines read “City Living Increases Men’s Death Risk” The headlines were based on a study of 3,617 adults who lived in the United States and were more than 25 years old. One researcher said, “Elevated levels of tumor deaths suggest the influence of physical, chemical and biological exposures in urban areas... Living in cities also involves potentially stressful levels of noise, sensory stimulation and overload, interpersonal relations and conflict, and vigilance against hazards ranging from crime to accidents.” Is a conclusion that living in an urban environment causes an increased risk of death justified?

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#Question id: 12260

#Section 1: Ecology

Chemical competition among organisms is referred to as __________. 

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#Question id: 12565

#Section 5: Applied Ecology & Evolution

If we say a species is endemic to a certain area, we mean that