In studying a population of lizards, scientists sampled 47 sections of a habitat. Each section was ...

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In studying a population of lizards, scientists sampled 47 sections of a habitat. Each section was 29 km2. The density of lizards was 1/(3.8 km2).

(a) Calculate the size of the lizard population living in the area. Show all your work. Enter the answer to the nearest whole number.

(b) What assumption did you make regarding the distribution of this population throughout its habitat when calculating your results? 

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 a)White spruce may compete with lodgepole pine for light and living space. Eventually, the white spruce may take over. What kind of competition is occurring? 
b)Provide two reasons the white spruce may out-compete the lodgepole pine.
2 marks