BIO 152 EXAM 3 ECOLOGY QUESTIONS WITH CORRECT ANSWERS

You are interested in determining the size of a population of kangaroos in Australia.
You capture 50 kangaroos and mark them with an ear tag. The next day, you capture
100 kangaroos, 20 of which are marked. Using a mark-recapture technique, what is
your estimate of the size of the kangaroo population?


25
50
250
500
2500


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250




Of the following conditions, indicate which (A or B) would be more effective in
regulating growth of a human population.

, A. Deaths from contagious disease in the population as a whole
B. Deaths from degenerative disease after age 40


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A. Deaths from contagious disease in the population as a whole




You are traveling north on the hypothetical continent that is found in the northern
hemisphere. As you travel north from the 0° to the 30°latitude, line which of the
following biomes would you be least likely to find?


Tropical rainforest
Desert
Coniferous forest
Grassland


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Coniferous forest




Which of the following statements is NOT true regarding the demographic transition
for human population growth?


A) In Stage 4, the difference between birth and death rates is very small
B) In Stage 2, death rates decline substantially
C) In Stage 3, birth rates decline
D) In Stage 4, birth and death rates are very low
E) In Stage 1, the difference between birth and death rates is very large


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