Biology 30 questions (please help!)?

A

anna

New member
1. Assume that a population measures 1000 individuals at present. Mortality is 130/year, natality is 200/year, immigration is 50/year, and emigration is 80/year. What will the population be two years from now?

a) 1040
b) 1080
c) 1140
d) 1500

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2. A J-shaped curve is characteristic of a(n)

a) open population
b) r-selected population
c) K-selected population
d) competitive population

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Geese and mosquitoes are mainly, respectively,

a) r-selected; r-selected
b) r-selected; K-selected
c) K-selected; r-selected
d) K-selected; K-selected

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Thank you in advance for all your help!!
 
1. B
1000 - (2X130) + (2X200) + (2X50) - (2X80)
Immortality is death rate, natality is birth rate, immigration is an organism entering a habitat, emigration is an organism leaving a habitat.
 
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